I do love this film.
I discovered it quite recently as my parents didn't watch Mel Brooks films. I only watch Blazing Saddles and Young Frankenstein. My husband loves The Producers (not the new thing--which we found unwatchable--putting us deep in a minority). He likes History of the World I too which just seems overdone to me. And the later stuff...well, the less said, the better.
Edit: My husband walked in and although I was looking at the TV guide with no picture, and even though all you heard was footsteps he knew right where we were in the film--and every line.