I dunno how much this adds to Jimmy's comment, but I'll try to piggyback.
In 1990-91, there was an Entertainment Tonight-style show called Premiere that (I think) replaced Feud at 7 or 7:30 on WTKR. I'd have to look up some old microfiche*, but I was an avid Feud watcher back then, and remember being disappointed that a different show had replaced it.
Premiere was gone by that fall, and Feud returned to the 7:00 hour (I think it was at 7). So, I dunno if it aired in a different slot in early-1991, or if WTKR took it off temporarily.
*/What's a guy gotta do to get his local paper in the newspapers.com archive?
//Microfiche is soooooo 1993