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 an affiliation with but has never owned). In general, an O&O is very unlikely to experience changes in its ownership, since it is often a significant source of revenue for its owner; and since its owner is also its parent network, the chances for an O&O to ever switch networks are also rather low – unless the station is, on the rare chance, sold to another network. However, in instances where the network finds an O&O to be no longer financially viable, it may choose to sell the station to a new owner or, in severe cases, simply close the