WCBS-TV
On October 21, 2014, CBS and Weigel Broadcasting announced the launch of a new digital subchannel service called Decades, scheduled to launch on all CBS-owned stations on May 25, 2015, including on WCBS-TV on channel 2.2. The channel is co-owned by CBS and Weigel (owner of CBS affiliate WDJT-TV in Milwaukee), with Weigel being responsible for distribution to non-CBS-owned stations. It airs programs from the extensive library of CBS Television Distribution, including archival footage from CBS News. On September 3, 2018, Decades was replaced on 2.2 by Start TV.
WCAU
In 1994, CBS entered into a long-term affiliation agreement with Westinghouse (Group W) Broadcasting, owners of Philadelphia's longtime NBC affiliate, KYW-TV (channel 3). Westinghouse converted three of its stations, KYW-TV among them, into CBS affiliates. CBS was reluctant to include KYW-TV in the deal since it had been a very distant third in the Philadelphia ratings for more than a decade. In contrast, WCAU was a solid runner-up to ABC-owned station WPVI-TV (channel 6). Ultimately, CBS decided to affiliate with channel 3 and sell channel 10, ending a 47-year relationship (including 37 years of ownership) with the station.