Free coffin if you don't DIE OF FRIGHT! The Screaming Skull.
Newlyweds Eric and Jenni Whitlock retire to his desolate mansion, where Eric's first wife Marianne died from a mysterious freak accident. Jenni, who has a history of mental illness, begins to see strange things including a mysterious skull, which may or may not be a product of her imagination. Suspicion falls on Mickey, the estate's mentally challenged gardener, who was seemingly was very attached to his former mistress.
Another one I've seen too many times for sanity...
True story: I walk past the television in my living room, ask my roommates what they are watching. They reply "Some crappy movie. No clue what it is though." I glance at the screen to see only a shot of an empty yard. Immediately, I reply "Oh, The Screaming Skull." I then explain the premise of the entire movie to them and walk back into my room. They didn't believe me until everything I described happened. They're still amazed that I could pinpoint the exact movie by nothing but a shot of lawn.
Anyways, seen this far too many times. I love this episode. The short is funny, and the riffing on the movie is hilarious the whole way through. The best part of the episode though are two segments. The bit where the robots "re-enact" the short is great. It cracks me up every time I hear their voices for the clay lumps. Of course, the tied-for-best segment is Crow scaring Mike as a screaming skull. Absolutely brilliant. I love it!
So yeah, this is a classic for me, and it's one of my faviourites.
Favourite line: "Let's just say she was riddled with bullets."