[quote name=\'aaron sica\' date=\'Apr 8 2005, 12:35 PM\']
The one that wound up bringing WCAU-10 to NBC was (and please, correct me if I'm wrong, folks) when Westinghouse bought CBS - Westinghouse stations that were another network (like KYW-3, then NBC, in Philly, and WJZ-13, then ABC, in Baltimore) affiliated with CBS. Having lost its CBS affiliation to KYW-3, WCAU-10 was bought by NBC and became an O&O. That took place 9/10/95.
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Westinghouse had to divest WCAU when they bought CBS. CBS wasn't allowed to own two VHF stations in Philly, KYW and WCAU, so they worked out a very complicated trade (let me see if I recall this right..) These are the ownership changes..
KCNC Denver went from NBC -> CBS
WCAU Philly went from CBS/Westinghouse -> NBC
Miami's Channel 6 went from CBS to NBC
Miami's Channel 4 went from NBC to CBS (they traded physical plant, the call letters of 4 were WTVJ, which went to Channel 6 (then WCIX). 4 became WFOR, 6 took the WTVJ calls)
SLC's channel 13 went from NBC ownership to CBS ownership (NBC went to KSL-5, owned by the Bonneville/Mormon Church)
Essentially NBC traded its Denver, Salt Lake, and Miami signals to CBS in exchange for WCAU and Channel 6 in Miami. (6 was damaged by Hurricane Andrew and was a very crippled signal, which CBS wanted to upgrade)
Prior to CBS/Westinghouse, KDKA in Pittsburgh and KPIX in San Fran were the only CBS stations that Westinghouse had.
Denver was triggered by KMGH bolting from CBS to ABC. Gannett owned KUSA the then ABC affiliate, which went to NBC (Gannett is a very big owner of NBC affiliates) after KCNC was traded to CBS.