About this "The Simpsons" episode:

The Simpsons - Three Men and a Comic Book is the 21st episode of season 2 and number 34 overall in the series.
In the episode, Bart catches a glimpse of the original issue of Radioactive Man for sale at a comic book convention, so he, Martin, and Milhouse combine their money to buy the valuable comic book, only to lose it due to their selfishness and inability to share.