The Rise and Fall of the Super Friends - S3.E31

The Super Friends are visited by Mister Mxyzptlk, who comes complete with a script for a movie that he wants the Super Friends to star in whether they want to or not. The imp uses his Fifth Dimensional magic to cause the Super Friends to act out the script...but Superman is not affected by it. He nonetheless goes along with everything in an elaborate plot to trick Mxyzptlk into saying his name backwards — by using his heat vision to change the last word on the script.