T.J. and the A.N.T.
Before Mystery Science Theater 3000 and before Elvira, there were other local productions where older B movies were shown. There was a short-lived, I think, one in the late 1970s from a TV station in Wausau, WI that was on sometime on a weekend afternoon. But the one I remember was a late-night thing on channel 11 in Green Bay, WI for a while in the 1980s.
Late at night VHF propagation changed just enough that the weak signal from channel 11 in Green Bay could often be picked up by a good antenna. It didn't have to be a really strong signal - the TV didn't blank the screen or cut the sound if didn't find a sufficiently strong signal, so sometime I'd watch through the snow on the screen.
After the news and the talk shows there would be some syndicated show such as Mary Tyler Moore, and after that then T.J. would appear. It was clear he was the one guy still at the station at time of night. He'd introduce whatever the movie was and also talk a bit in the commercial breaks. Monday through Thursday he'd show one movie and that would be that.
One night he showed the same episode of the syndicated show as had been shown the night before. "The station" got calls about it. Since it was just him, he got the calls about it. T.J. explained, before the movie started, that he had simply taken the next tape from the sequence, which was numbered, and showed it. By the time he realized it was a repeat, it was too far in to do anything about. And it wasn't like he had an extra show to put on the air.
During a break, T.J. had two video machines going to two monitors and displayed that he really did have two different tapes of the same show. He might have even showed the two differently numbered tape cases. He didn't have to do that, but he did as an explanation of what had happened.
A week might have a theme. Maybe it'd be all Three Stooges movies, or maybe just all comedies, including ones not generally seen such as Wheeler and Woolsey's Half- Shot At Sunrise. Or it could be science fiction with such things as Robinson Crusoe on Mars and the infamous Plan 9 From Outer Space.
As mentioned, Monday through Thursday only one movie would be shown and then it was time for signoff. But not Friday. Friday was the A.N.T. - All Night Theater. If you could stay awake that long and cared to watch, there'd be movies if not until morning, close enough. I know I stayed up once or twice to watch, or try to watch, the lot. I also know I generally went to bed, too tired to care about the movies anymore before daylight.
T.J. didn't have a gimmick. He didn't talk over the movies. He didn't randomly interrupt the movies. He didn't have any shtick during the breaks, or at least none that made enough of an impression for me to recall. There was, as far as I can recall, no fan club or such. He almost certainly commented on the movies in the breaks, but that was about it. He was just a friendly host who was there.