 KYW-TV's switch to CBS prompted the network to sell its longtime Philadelphia O&O WCAU-TV (channel 10) to NBC (incidentally, New World briefly considered purchasing WCAU with the intent to convert it into a Fox affiliate; Paramount Stations Group would sell that network's existing affiliate WTXF-TV (channel 29) to Fox Television Stations, while in turn, acquiring independent station WGBS (channel 57, now CW owned-and-operated station WPSG) – which Fox attempted to purchase in August 1993, before terminating that deal to acquire WTXF – from Combined Broadcasting).After CBS discovered that an outright sale of WCAU would have resulted it having to pay a high tax rate from the proceeds accrued, CBS, Group W and NBC entered into a complex trade deal involving four stations which took effect on September 10, 1995.NBC traded KCNC-TV (channel 4) in Denver and KUTV (channel 2) in Salt Lake City, to CBS; meanwhile, CBS-owned WCIX (channel 6, now WFOR-TV on channel 4) in Miami swapped transmitter facilities and channel frequencies with NBC-owned WTVJ (channel 4, now on channel 6) as compensation for the trades.