title: Mike Nelson (character)
context: When Joel Robinson escapes from the Satellite of Love at the end of this episode, the "Mads" knock Mike unconscious and send him up to the satellite to replace Joel as their experimental guinea pig. The hapless Mike finds himself forced to watch bad movies with robot companions Tom Servo and Crow T. Robot while interjecting humorous quips and cultural riffs based on the action and dialog in the films. Nelson's first full appearance was episode 513, The Brain That Wouldn't Die. He typically wore either a dark green jumpsuit, a teal jumpsuit or a blue jumpsuit.
question: When did Mike first appear on Mystery Science Theater 3000?
answers: episode 513