This runs 38 minutes. It's a 1985 special that Penn & Teller did for PBS featuring routines they did then, one or two of which are still in their active repertoire. I remember seeing this when it first aired…and I still have a tape of it on Beta.
I had previously seen them live in a local club that was kind of a pick-up joint…the sort of place where no one cares much what's on stage; only with who they might be able to take home after the show. I think a friend of mine and I were the only ones laughing but we laughed enough to make up for the rest of the crowd. Not long after, I began to see them on TV shows and it was this special that convinced me they were going to be around for a while. Even though the whole program was obviously made for like $35, it's a nice little show. It's in three parts which should play one after the other in the little player I've embedded below…