Both versions of Santa and the Ice Cream Bunny. It is just such a bizarre and perfect movie for them to riff, and the fact that they use two different edits of the film offers a rare case where the studio and live versions are different enough to warrant watching both. I actually managed to buy an original movie poster for the film a few years back:
Name drop: My dad co-produced KTMA telethons with Jim Mallon in the late 80's
I've been to most of the live shows but I'm interested in sampling a few of the deep cuts, specifically riffs that feel more like classic Mike-era MST3K. Any recommendations along those lines?
Well, Planet of Dinosaurs comes pretty to ye olden days of MST3K. But an even better pick still would be a non-Rifftrax ep, Wild Women of Wongo, which Mike, Kevin, and Bill riffed during their Film Crew phase. No other effort IMHO comes closer to recapturing the magic of the Sci-Fi channel years. It even has host segments!