Possibly...I don't know the title of the episode, but it's the one where homer has a heart attack and Dr. Nick operates on him with clever quips such as:

While operating - "The round thing's connected to the blue thing, the blue thing's connected to the red thing, the red thing's connected to my, wrist watch....uh-oh."

Last words Homer hears before passing out from anesthesia (from Homer's perspective)- (Dr. Nick looking down at his chest) "What the hell is that?"

-Ramon http://razor.ramon.com ("I am so smart, I am so smart...S-M-R-T, I mean, S-M-A-R-R-T")