Channel 3 signed on as Pennsylvania's first television station WPTZ on Labor Day, September 1, 1941.
On Monday, October 18, 1954, WPTZ became WRCV-TV and Owned by NBC until Friday, June 18, 1965, when Westinghouse Broadcasting brought the current KYW-TV callsign from Cleveland to Philadelphia.
Westinghouse Broadcasting & Cable and Group W Productions used a proprietary typeface called "Westinghouse" (also known as "Anklepants", due to a similar but identical font) for the station logo throughout their own entire ownership of the station as shown here. This had come after Westinghouse and NBC had switched stations (with the KYW calls and license transferring to what is now WKYC in Cleveland, and the WRCV-TV calls have changed into the current KYW-TV) only for the Federal Communications Commission to cancel the trade due to allegations of coercion on part of NBC and its allowance to have the KYW-TV callsigns goes to Philadelphia, PA on Saturday, June 19, 1965.
In 1995, KYW-TV switched its affiliation from NBC to CBS, as a result of a deal with Westinghouse that renewed its existing CBS affiliates in San Francisco and Pittsburgh. (On the date of KYW's switch, WJZ-TV also assumed affiliation with CBS, in a transaction that saw its ABC affiliation transfer to WMAR-TV.) Westinghouse later acquired CBS altogether and making it KYW-TV as a network O&O and co-flagship station.
Mike Douglas with an RCA TK-43 camera
RCA TK-43 cameras behind the scenes of The Mike Douglas Show
NBC affiliation logo (1979–1986)
3 For All (1979-1980)
1982 Station Ident
1983 Station Ident
Evening Magazine billboard, 1983
New Year slide, 1986
KYW-TV (NBC) Channel 3 Let's All Be There ID (1985-1986)
Hill Street Blues billboard, 1986
Miami Vice billboard, 1986
Remington Steele billboard, 1986
St. Elsewhere billboard, 1986
NBC affiliation logo (1986–1995)
KYW Come on Home to Channel 3 promo (1987-1988)
Your Constitution Station ID (1987)
Station ID (1989-1991)
The Pride of Philadelphia id from 1990-1991
Channel 3 Eyewitness News 6PM outro from March 2, 1990
Though both KYW-TV and its AM station of the same name still used it to a degree, the classic Group W typeface had begun to be phased out by the time this logo for the television station was introduced.