should give up his quest for public television. Price said that Hazard should keep fighting, promising Westinghouse support for WQED. Westinghouse donated the tower it had purchased for the channel 13 license, enabling WQED to begin operations on April 1, 1954. The station's call letters are from the Latin phrase quod erat demonstrandum ("what was demonstrated"), commonly used in mathematics. Westinghouse soon had its Pittsburgh TV station. Knowing that DuMont needed WDTV's cash flow to get its programming cleared in larger markets and a short-term cash infusion after DuMont investor Paramount Pictures vetoed a merger between DuMont and ABC, Westinghouse offered DuMont $10 million for WDTV in January 1955. It changed the station's call sign to KDKA-TV, making it a sister station of KDKA radio. DuMont, unable to obtain clearance in larger markets, was out of business by the end of 1956. Although KDKA-TV is now owned by Westinghouse successor Paramount Global, the station retains a close relationship with WQED. WQED briefly shared channel 13 with WENS-TV in 1955, after a storm damaged the WENS-TV tower in Reserve Township, until the WENS-TV tower was repaired. WQED acquired the station and renamed it WQEX in 1959, using the construction permit it had acquired for channel 22 to launch WQEX on channel 16. The Commercial Radio Institute acquired the WENS-TV permit for channel 22, launching WPTT (now WPNT) in 1978. The station was briefly affiliated with the NTA Film Network during the late 1950s, sharing the affiliation with KDKA-TV, WTAE-TV, and WIIC-TV (now WPXI). From sign-on until its replacement by PBS in 1970, WQED was a National Educational Television member station. During its heyday in the 1970s and 1980s, WQED supplied programming to PBS. For 15 years, WQED produced the National Geographic specials for the National Geographic Society. The programs won several Emmy and other awards, including Peabody Awards. Actor Michael Keaton, who worked behind the scenes on Mister Rogers' Neighborhood, went on to international fame. During its heyday, WQED supported a post-production office and editing facility in Los Angeles. Known as QED/West, the satellite edited much of WQED's national programming. During the early 1990s, WQED faltered, as did many other PBS stations across the country, as the rapidly-changing media landscape shifted. The downturn was exacerbated by a scandal in which top executives were discovered to have been augmenting their income without informing the board of directors. The period was chronicled in