Here is a trivia question I found on Answers.com: what episode has the first occurrence of a "Scooby Dooby Doors" chase? (That is, a chase where characters pop in and out of doors in an illogical way).
Well even though not a true "chase" scene Miner Forty-Niner did have a scene in the episode where the miner was in one door-way, then appeared in another illogically. I would have to do more thinking for an actual chase scene. Its no fun if i just look it up. ;D