Kaufman's wonderful fistfight aside, Fridays had some kickass musical guests: DEVO, Plasmatics, Jim Carroll.
Does any one remember SCTV? John candy had a bit called THE FISHIN' MUSICIAN wherein he played Gil Fisher who lived in a cabin on a lake. Each week they would have musical guest fish on the lake and then perform. Seeing the Plasmatics fish was grrrrrreat. I think they caught a walleye pike! He also had the Tubes, too.