WJZ-TV (channel 13) is a television station in Baltimore, Maryland, United States, airing programming from the CBS network. It is owned and operated by the network's CBS News and Stations division, and maintains studios and offices on Television Hill in the Woodberry section of Baltimore, adjacent to the transmission tower it shares with several other Baltimore broadcast outlets.

BrandingWJZ 13; WJZ News
CBS News Baltimore
FoundedMay 1946[1]
First air date
November 1, 1948 (1948-11-01)[2]
Former call signs
WAAM (1948–1957)
Former channel number(s)
13 (VHF, 1948–2009)
38 (UHF, 1998–2009)
13 (VHF, 2009–2020)
ABC (1948–1995)
DuMont (1948–1956)
Decades (2015–2018)
Call sign meaning
named after the former callsign of what is now WABC (AM), which were randomly assigned
Technical information
Licensing authority
Facility ID25455
ERP30 kW
HAAT305 m (1,001 ft)
Transmitter coordinates39°20′5″N 76°39′2″W
Public license information


Early history

The station first signed on the air on November 1, 1948, as WAAM, becoming the third television station in Baltimore behind WBAL-TV (channel 11) and WMAR-TV (channel 2), all within just over a year. The station was originally owned by Radio-Television of Baltimore Inc., whose principals were Baltimore businessmen and brothers, Ben and Herman Cohen.[3][4] Channel 13 was originally an ABC affiliate, the network's fifth outlet to be located on the East Coast.[5] It carried a secondary affiliation with the DuMont Television Network until its closure in 1956. Both affiliations moved from WMAR-TV, which became an exclusive CBS affiliate.[6]

On the station's second day of operations, WAAM broadcast the 1948 presidential election returns and various entertainment shows, remaining on the air for 23 consecutive hours.[7] Channel 13 has been housed in the same studio facility, located near Druid Hill Park on what was then known as Malden Hill (now known as Television Hill), since the station's inception; the building was the first in Baltimore specifically designed for television production and broadcasting. As a DuMont affiliate, WAAM originated many Baltimore Colts games for the network's National Football League coverage.[8][9]

The Westinghouse Electric Corporation purchased WAAM from the Cohen brothers in May 1957.[10] Westinghouse then took control of the station in August of that year, and changed its callsign to WJZ-TV the following month. The WJZ call letters had previously resided on ABC's flagship radio/television combination in New York City, which changed its calls to WABC-AM-FM-TV in 1953.[11] However, Westinghouse's history with that set of call letters went back even further, as it was the original owner of WJZ radio, the flagship station of NBC's Blue Network, which would eventually become ABC.[12]

All of Baltimore's television stations at the time had fairly short transmission towers in the medium's early years; channel 13's original tower was located next to the station's studios. In 1959, WJZ-TV collaborated with WBAL-TV and WMAR-TV to form a joint venture to build the world's first three-pronged candelabra tower.[13] Constructed behind the WJZ-TV studios and opposite the original channel 13 tower, it was the tallest free standing television antenna in the United States at the time of its completion. The new tower significantly improved channel 13's signal coverage in central Maryland, and also added new viewers in Pennsylvania, Delaware,[13] Washington, D.C. and Virginia.[14]

The WJZ-TV studio and office facility, on Television Hill in Baltimore.

WJZ-TV nearly lost its ABC affiliation in 1977, when the network briefly pursued WBAL-TV just as ABC became the most-watched broadcast network (in prime time) in the United States for the first time. However, WBAL-TV declined the ABC affiliation offer due to ABC's last-place network evening newscast offerings of the time (a situation that would improve in ensuing years), keeping ABC on channel 13.[15][16]

Switch to CBS

In June 1994, ABC agreed to an affiliation deal with the broadcasting division of the E. W. Scripps Company, which resulted in three of Scripps' television stations—WMAR-TV in Baltimore, WFTS-TV in Tampa and KNXV-TV in Phoenix—becoming ABC affiliates. ABC agreed to the deal as a condition of keeping its affiliation on Scripps' two biggest stations, WXYZ-TV in Detroit and WEWS in Cleveland. Both stations had been heavily courted by CBS, which was about to lose two of its longtime affiliates—WJBK and WJW—to Fox. ABC was reluctant to include WMAR, then an NBC affiliate, in the deal; it had been a ratings also-ran for over 30 years while WJZ-TV was one of the strongest ABC affiliates in the nation. However, not wanting to be relegated to UHF in two markets with few viable choices for a new affiliate, ABC opted to end its 46-year affiliation with channel 13 and move its affiliation to channel 2.[17]

Group W felt betrayed by ABC after so many years of loyalty, as channel 13 had been ABC's longest-tenured affiliate at the time (a distinction that now belongs to WJLA-TV in Washington). As a safeguard, it began to shop for an affiliation deal of its own. In the early summer of 1994, the station was approached by NBC to negotiate an affiliation agreement with the network to replace WMAR as its Baltimore affiliate. Channel 13 station management would later turn the offer down.[18] Instead, one month later, Westinghouse agreed to a long-term affiliation contract with CBS, resulting in WJZ-TV, as well as WBZ-TV in Boston and KYW-TV in Philadelphia, switching to CBS (Westinghouse's two other television stations, KDKA-TV in Pittsburgh and KPIX-TV in San Francisco, were already CBS affiliates).[19] The affiliation switch, the second in Baltimore television history, occurred early on the morning of January 2, 1995.[20] Though ABC's affiliation contract with channel 13 did not expire until January 1995, starting in 1994, all CBS programs preempted by WBAL-TV would air on WJZ-TV.[21] The last ABC prime time program to air on channel 13 was the made-for-TV movie A Dangerous Affair, which was broadcast at 9:00 p.m. Eastern Time on January 1,[22] and the final overall ABC program to air on channel 13 was the January 2 edition of ABC World News Now.[23] As a result, channel 13 became the third station in Baltimore to affiliate with CBS. The network had originally affiliated with WMAR-TV in 1948 before moving to WBAL-TV in 1981. Almost by default, the 1995 switches saw the NBC affiliation return to WBAL-TV after a 14-year absence.[24]

CBS' move to WJZ immediately resolved several scheduling issues the network had with WBAL-TV. The station had picked up half of its Saturday morning programming, as well as an hour of daytime programming. WJZ-TV also picked up the Late Show with David Letterman, which had aired on WNUV (channel 54) after WBAL passed on it (one of the few CBS affiliates to do so).[25] Westinghouse then bought CBS on November 24, 1995, making WJZ-TV a CBS owned-and-operated station. Notably, this marked the first time that CBS had wholly owned a television station in the Baltimore/Washington corridor; it had been minority owner of WTOP-TV in Washington (now WUSA) from 1950 to 1955.

WJZ-TV has used its current stylized "13" logo, using a font face exclusive to Group W, since 1967. In 2002, the CBS eye was added, and in 2018, the station switched to a silver and gold-colored version (resembling logo styles used by its sister stations) with the WJZ call letters displayed below in squares.

CBS extended its usage of the WJZ call sign to radio on November 3, 2008, when CBS Radio changed the call signs of two of its Baltimore stations, WHFS (105.7 FM) and WJFK (1300 AM), to WJZ-FM and WJZ in reflection of their connection to WJZ-TV; the changes coincided with the move of WJFK's local sports radio programming, including a program co-hosted by WJZ-TV sports anchor Mark Viviano, to WJZ-FM.[26] On February 2, 2017, CBS Radio announced that it would spin off from CBS Corporation and merge with Entercom (now Audacy, Inc.), effectively separating WJZ-TV from the WJZ radio stations;[27] the transaction closed on November 17, 2017.[28]


WJZ-TV is the Baltimore area affiliate of the It's Academic high school quiz competition.

Over the years, WJZ-TV frequently preempted ABC programming in favor of locally produced programs and syndicated content from Westinghouse's broadcasting division, Group W, such as The Mike Douglas Show and the original version of The Merv Griffin Show; notably, the former ABC daytime soap opera Dark Shadows was preempted during the mid-1960s. WJZ-TV aired The Edge of Night in pattern from its December 1975 relocation from CBS to ABC until September 16, 1983; the following Monday, the soap opera was moved to a one-day delay time slot of 11:00 a.m., where it remained until the series took a two-week hiatus in favor of ABC's coverage of the 1984 Summer Olympics.[29] Despite the preemptions and delays, ABC was more than satisfied with channel 13, which was one of its strongest affiliates. Additionally, Baltimore viewers could watch ABC programs on Washington's WMAL-TV/WJLA-TV (channel 7), whose signal decently covers most of the Baltimore area.

From 1957 to 1964, one of the station's highest-rated programs was The Buddy Deane Show, an in-studio teen dance show similar to ABC's American Bandstand, which WJZ-TV also preempted in favor of the Deane program. Deane's program was the inspiration for the John Waters 1988 motion picture Hairspray and its subsequent Broadway musical version, which in turn has been made into a film.

Since becoming a CBS affiliate, WJZ-TV has carried the network's lineup in pattern with virtually no preemptions except for breaking news emergencies and Orioles baseball games, as per an agreement between Group W and CBS. Prior to September 2019, WJZ-TV aired the CBS Evening News on a half-hour tape delay, due to an hour-long 6 p.m. newscast. Current syndicated programming carried on this station includes Dr. Phil and Entertainment Tonight. Both shows are distributed by CBS' corporate cousin, CBS Media Ventures.

Sports programming

WJZ-TV has been the de facto broadcaster for the Baltimore Ravens of the National Football League, airing a majority of the team's contests since CBS acquired rights to the American Football Conference in 1998, including their Super Bowl XXXV and XLVII appearances, both victories, at the end of the 2000 and 2012 seasons.

Channel 13 has also served two stints as the television home of the Baltimore Orioles baseball team, from 1954 to 1978 and from 1994 until 2017. It was one of the few "Big Three" stations to air baseball on a regular basis. As an ABC affiliate, WJZ-TV also broadcast select Orioles games via ABC's MLB broadcast contract from 1976 to 1989, including their 1979 and 1983 World Series appearances, the latter won by the team.

News operation

Two former WJZ anchors Don Scott and Jessica Kartalija preparing for a live-shot during the funeral of former Maryland Governor William Donald Schaefer, April 28, 2011.

WJZ-TV presently broadcasts 44 hours, 55 minutes of locally produced newscasts each week (with 7 hours, 35 minutes each weekday, four hours on Saturdays and three hours on Sundays).

Soon after Westinghouse bought WJZ-TV, it significantly beefed up the station's news department. On October 12, 1957, WJZ-TV cameraman John Kelly filmed a motion picture of the final stage of Sputnik 1's rocket crossing the pre-dawn sky of Baltimore, featured in a half-hour special program on Sputnik, broadcast that evening by Westinghouse sister station WBZ-TV in Boston.[30] Within a few years, it passed WMAR-TV for second place. Like the other Group W stations, WJZ-TV adopted the Eyewitness News format pioneered at Philadelphia sister station KYW-TV. By the early 1970s, WJZ-TV had passed WBAL-TV for first place—a lead it held for over 30 years. Around 2001, however, WBAL-TV passed WJZ-TV for first place in all evening timeslots, though WJZ-TV still placed a strong second. However, in the official November 2009 Nielsen ratings sweeps period, the first since the debut of The Jay Leno Show (which aired on WBAL-TV), WJZ-TV returned to a dominant position at 11 p.m. for the first time since the early 2000s. Both stations spent the next two years in a virtual dead heat in the late news. Since the November 2011 Nielsen sweeps period, WJZ has regained the lead in all news time slots in both total households and the critical 25–54 demographic; however, WBAL remains a strong second. It has been one of CBS's strongest O&Os ever since the 1995 affiliation switch.

WJZ-TV was the first station in Baltimore to hire a full-time consumer reporter, as well as the first station to organize an investigative reporting team. In 1965, shortly after it adopted the Eyewitness News format, Wiley Daniels became the first African-American anchor in Baltimore. He worked alongside Jerry Turner, one of the most popular anchormen in Baltimore television history. Al Sanders succeeded Daniels in 1977; he and Turner were the top news team until Turner succumbed to esophageal cancer. Denise Koch succeeded Turner upon his death in 1987; she remains at the anchor desk alongside Vic Carter, who succeeded Sanders following the latter's death in 1995.

In 1976, Oprah Winfrey became an anchor for the station's 6:00 p.m. newscast. She also co-hosted channel 13's local talk show, People Are Talking with Richard Sher, which premiered on August 14, 1978, until she left for Chicago in 1983.

Since September 2008, The Baltimore Sun has had a news partnership with WJZ-TV; involving sharing content, story leads, and cooperating together on stories. Channel 13 promotes stories featured in the Sun on its news broadcasts. The Sun promotes WJZ's stories and weather team on its pages. Coincidentally, The Baltimore Sun was the founder and original owner of rival WMAR-TV from 1947 to 1986.

On October 25, 2009, WJZ-TV became the third Baltimore station to begin airing newscasts in high definition. For several months after the upgrade, field reports were still presented in 4:3 standard definition until it switched over to the 16:9 widescreen format. As of September 2011, all of WJZ-TV's locally produced video footage, including remote field reports, are in HD, making it the first station in Baltimore to do so.

During the noon newscast on August 9, 2018, WJZ-TV unveiled a new set, and introduced the same on-air graphics scheme used by other CBS owned-and-operated stations (the last among the group to do so).[31] On August 20, 2018, WJZ-TV expanded its morning newscasts from 5–7 a.m. to 4:30–7 a.m., becoming the last station in Baltimore to start their morning newscasts at 4:30 a.m. On September 9, 2019, WJZ debuted a 7 p.m. newscast for the first time, and the CBS Evening News was moved to 6:30 p.m.

WJZ-TV launched a streaming news service, CBSN Baltimore (now CBS News Baltimore), a localized version of the national CBSN service) on August 23, 2021, as part of a rollout of similar services across the CBS-owned stations.[32]

Current on-air staff

  • Marty Bass – weathercaster

Notable former on-air staff

Technical information


The station's digital signal is multiplexed:

Subchannels of WJZ-TV[34]
Channel Video Aspect Short name Programming
13.1 1080i16:9WJZ-TVMain WJZ-TV programming / CBS
13.2 480iStartTVStart TV
13.3 DablDabl
13.4 FaveTVFave TV

Analog-to-digital conversion

WJZ-TV shut down its analog signal, over VHF channel 13, on June 12, 2009, the official date in which full-power television stations in the United States transitioned from analog to digital broadcasts under federal mandate. The station's digital signal relocated from its pre-transition UHF channel 38 to VHF channel 13.[35][36][37] WMAR-TV took over the channel 38 allocation as it moved its digital signal from channel 52 as a result of the phaseout of channels 52–69.

The switch caused problems for some viewers due to reception issues related to the transition, but the Federal Communications Commission granted WJZ-TV a power increase that helps some people.[38]

Spectrum repacking

As a part of the repacking process following the 2016–2017 FCC incentive auction, WJZ-TV relocated to VHF channel 11 on July 3, 2020, using PSIP to display its virtual channel number as 13.[39] WBAL-TV concurrently moved to channel 12.

Out-of-market coverage

In Delaware, WJZ is carried on Comcast in Sussex County. There is no coverage in most of New Castle County except in the area of Middletown for Atlantic Broadband cable subscribers. There is no coverage in all of Kent County. New Castle and Kent counties are part of the Philadelphia market, which also carries WJZ's sister station KYW-TV. Only Sussex County is part of the Salisbury, Maryland, market which carries its CBS affiliate, WBOC. In the beginning of CATV, most if not all of Delaware once carried WJZ.[40][41]

In Maryland, the eastern shore communities of Cambridge, East New Market/Secretary, Pocomoke City, Ocean City, Salisbury and Snow Hill carry WJZ. These areas are in the Salisbury market which WBOC is carried. From Hagerstown and west towards Cumberland, WJZ is carried there as well in the far northwestern part of the Washington, D.C. market. Between Hagerstown and Cumberland, the towns of Hancock and Oldtown do not carry WJZ.

In Pennsylvania, it is carried in Greencastle, Delta, Hanover, Waynesboro and York County (but not in the city of York) which are in the HarrisburgLancaster–York market. In the Philadelphia market, it is carried in Oxford in Chester County.

WJZ is carried on cable in portions of Virginia located in the far western end of the Washington, D.C. market, alongside Washington's CBS affiliate WUSA. It is carried on cable in the Shenandoah Valley in Elkton, Front Royal, Luray and Winchester. In West Virginia, it is carried in the Martinsburg area; it is part of the Washington, D.C. market, which carries WUSA as well. In Keyser, Mineral County, WJZ is carried on cable.

During the 1970s and possibly the 1980s with CATV, WJZ was once on the cable lineups in Salem and Cumberland counties in southwestern New Jersey.[40]

WJZ's former analog signal could be picked up via antenna as far west as Warrenton and Culpeper, Virginia, and as far east as Salem County, New Jersey. There is no satellite coverage outside of the Baltimore market for WJZ.


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