Owned-and-operated television stations in the United States began to open up affiliation negotiations in March 2006. UPN stations that were formerly owned by Chris-Craft Industries and those that were owned by CBS Corporation at the end of the network's run were sometimes considered owned-and-operated stations of the network, and several transactions have involved these stations. Not too long after becoming a UPN owned-and-operated station itself, San Antonio station KRRT (channel 35, now KMYS) was sold to Jet Broadcasting in 1995, eventually becoming an affiliate of The WB (the station is now a CW affiliate that is operated by former owner Sinclair Broadcast Group, and owned by Sinclair
Owned-and-operated station the now-defunct ACME Communications. While Tribune-owned stations such as WGN-TV in Chicago, WPIX in New York City and KTLA in Los Angeles (along with most of the ACME stations) aired programming from The WB, they did not fit the standard definition of an owned-and-operated station. A similar exception existed when UPN launched in January 1995 by co-owners Chris-Craft and Viacom. Each of the companies owned a number of stations that aired the network. However, the stations were also not considered O&Os under the initial standard definition. This ambiguity ended with Viacom's buyout of Chris-Craft's share of the network in 2000,