The Olympic Swimming Family couch gag is the sixteenth couch gag of Season 20.
There's an Olympic-sized swimming pool that leads to the couch. The Simpson family takes their places on the marks and once the starting pistol goes off, they dive in and swim to the couch. Marge is first, Lisa is second, Bart is third, and Maggie is last. After they finish swimming to the couch, they sit on it, except for Homer. The family looks around, wondering where Homer is and why he didn't swim with them. They look across the pool to see an unconscious Homer floating face down in it.