Quantum Leap is a tv-series that aired from 1989-1993. Scientist Sam Beckett finds himself trapped in time--"leaping" into the body of a different person in a different time period each week.
Season 6 - 2F03 - Treehouse of Horror V
After Homer has repaired the toaster in the segment Time And Punishment he is able to leap back and forth in time, similar to in the series Quantum Leap.
Season 6 - 2F01 Itchy & Scratchy Land - 2F14 Homer vs. Patty & Selma
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In the couch gag to these episodes the Simpsons are transported into the couch the same way as in the series.
Thanks to Quantumleap-Alsplace.com