Notice there is no question mark after the title Who's On First. In 1945, comic actors Bud Abbott and Lou Costello performed a classic 5 minute baseball humor routine called Who's On First. Now over 60 years old, it still holds up as hilarious. In 1999 Time magazine voted it the Best Comedy Sketch of the 20th Century. You can listen to the MP3 recording and read the text transcript online of the original Who's On First. There have been endless amounts of take-offs of this routine over the years. One very funny Who's On First take-off routine on the subject of movies is about A customer steps up to a video-store counter with a stack of videos.