WPGH-TV
On December 6, 2017, it was reported that Sinclair and Fox were working on a deal that would see its Fox affiliates renew their affiliation agreement in exchange for Sinclair selling some of its Fox affiliates directly to Fox Television Stations. The deal would see between six and ten Fox affiliates owned by Sinclair and Tribune (all in markets with an NFL team) become Fox owned-and-operated stations. It is not known if WPGH-TV will be one of the stations sold, although the stations being sold to Fox are expected to be from Tribune Media (notably KCPQ in Seattle, where Sinclair already owns KOMO-TV), many of which were previously owned by Fox. A sale to Fox would make WPGH-TV the third O&O station in the Pittsburgh market alongside KDKA-TV and WPCW. It was later reported that sister station WPNT might be included in the deal as well. On May 9, 2018, Sinclair announced that seven Fox affiliates would be sold to FTS, but WPGH-TV was not included and an affiliation renewal was announced for that station instead, keeping WPGH-TV and WPNT with Sinclair.
WPMI-TV
Fox wanted to upgrade affiliates in many markets when it acquired the rights to broadcast games from the NFL's National Football Conference in the mid-1990s. After signing an affiliation deal with New World Communications to switch its "Big Three" affiliates to Fox, the network decided to make affiliate upgrades in smaller markets. In 1995, Fox formed SF Broadcasting in a joint venture with Savoy Pictures, which the network owned a voting stock in, and bought three NBC affiliates and an ABC affiliate; one of the NBC stations it acquired was local rival WALA-TV (channel 10). On January 1, 1996, WALA switched its affiliation to Fox, while the NBC affiliation moved to WPMI.