9. Robot Chicken
First Appearance: "The Fabulous Faker Boy" (20x24)
Robot Chicken is one of the most iconic and inappropriate shows in animation. It has become iconic for its use of action figures as opposed to traditional animation. This makes Robot Chicken's turn at creating a Simpsons couch gag so fun.
It puts the Simpsons in a different light, with Homer taking full advantage of Robot Chicken's laws of physics, including hilarious scenes of Homer rampaging through Springfield, racing Otto through a Hot Wheels inspires race track and Barney and Moe both being toys with operated pull strings, with Moe's reaction to his catchphrase being very in character.
The gag ends with the family being strapped to the couch by the half chicken-half robot hybrid mascot of Robot Chicken, who forces them to watch Robot Chicken. Truly, a bizarre yet iconic introduction which will go down as one of the show's best couch gags and collaborations.