WYFF here in Greenville SC/Asheville did that- they'd put Somerset in the hole. WSPA usually had something syndicated between Search For Tomorrow and As the World Turns. Soon after though, WYFF found out that people wanted news not drama at 1:00, and changed it back. Then when Days of Our Lives moved to 1:00 the station found a permanent solution. Same thing with Another World moving to a hour, the station had found a permanent solution to the issue. It goes back to the scheduling problem that began in 1968 when NBC lost the game Let's Make a Deal to ABC. (Deal had done very well after the local talk show Today in The Piedmont since LMAD's 1963 debut, and when ABC got Deal, the station suffered, and in its wake, eight different shows were placed into the slot- (Hidden Faces, You're Putting Me On, Life with Linkletter, Words & Music, Memory Game, Three on a Match, Jeopardy!, and How to Survive a Marriage). All which could not get the lead out audience from Today in The Piedmont.(All My Children, on ABC was also stealing away some of Today in The Piedmont's audience too.) 4 dropped it and for a while, didn't have a newscast, then in the late 70s, went with a noon newscast and settled down to get decent ratings opposite Y&R which had dominated the noon timeslot since 73.
Meanwhile they struggled to find anything to air after AW(and later on Santa Barbara)-Batman, Bonanza, whatever they could find- before Oprah became successful in the 80s. In exchange to its affiliates for taking away the old half-hour access slot at 1:00/Noon, NBC gave them the 4 p.m./3 slot, which many (if not most) stations had been preempting for years anyway, so Oprah was part of that trend.