I'm always happy to find and Abbott and Costello show here. If there was one OTR I would have liked to have been in the audience for, this was it. It always sounds like the audience is having the time of their lives, and the boys, Costello especially, play a lot to the audience. They play off the audience's reactions and there are obviously a lot of asides to the audience and physical humor for them that we don't see at home. I'm sure it comes from Bud and Lou's vaudeville background.
BTW- want a good read? Read Lou's Biography, Lou's on First, by his daughter.