Jim Breuer & Dave Chappelle appear in this episode as audience members invited onto Tool Time. They would later co-star in Half Baked.
Jim Breuer and Dave Chappelle have guest appearances in this episode and would later co-star in the movie Half-Baked. This episode was released in season 4 and the episode is number 20. 420 is a reference to cannabis culture and Half-Baked is a stoner comedy film.
Dave Chappelle and Jim Bruer were audience members (Dave and Jim) on Tool Time. This was done to introduce their characters for a new show they were starring in called Buddies (1995), which would debut on the same network as Home Improvement. Unfortunately, Jim Bruer was replaced at the last minute and the show was canceled after only 4 episodes.