It’d be fun to see a crossover between two anime series’ that have two mutually incompatible apocalyptic conspiracies. Like Evangelion and…I dunno, Hellsing or something.
Battlestar Galactica reaches Earth, and it’s SG-1 Earth. System Lords of Kobal, anyone ?
But think of the Jello wrestling!
Swamp Thing and co. vs Cthulhu. An epic battle for the ages!
Barney Miller and Night Court: Law and Order, sitcom style.