I can't find this episode

Hey, all,

I've got the first season on video but the tape's box that mentions having the episode with Tristan playing the monk's ghost prank is faulty, as this episode is not on the video at all. I've looked again and again through the episodes from my first and second season videos and I can't figure out where this episode has disappeared to. I do have it taped somewhere, but I definitely remember seeing it, but a long time ago, on the BBC editions I have, though it seems to have vanished (strange, huh?).

Can anyone tell me what the name of this episode is so I don't lose my mind looking? IMDB is not very thorough in the synopses for these, so that's no help at all.

Thankx in advance.