I have recently become a late-coming fan to the show Frasier. After thoroughly burning ourselves out on Scrubs (by recording and watching at least one show every day), Melissa and I are now attempting to burn ourselves out on Frasier.
One of the episodes I saw recently had a beautiful scene in which Niles is congratulating (jealously) Frasier for taking physical action against someone who had pushed Frasier's delicate sensibilities over the edge. As Niles greets Frasier at the door, he says to him, "Well, if it isn't Mr. Floats like a lepidoptera and stings like a hymenoptera."
That might be one of the best lines in all of television history.