This was hilarious! It's mostly because you get a great sense of time travel. I think the time traveler appeared in "Klay World: Off The Table" or whatever the movie was called. They didn't have eyes before? How could they see? The football gag was funny too.
I just love how everything builds up. Time travel is really cool too. I like how he called him "Doctor Brown". He even explicitly says, "Back To The Future". Love that movie.