Otto the Automatic Entertainer

From Muppet Wiki

Otto the Automatic Entertainer is a robot comedian brought to The Muppet Show in episode 320 by his inventor, Professor Albert Flan. Otto buzzes and whirrs and falls apart in the middle of a joke. Later in the episode, Otto fills in as the assistant in Fozzie's magic act. Fozzie tries to saw Otto in half, and gets electrocuted.