Original rating of 5/5 will be changed after my recent rewatch.
While my sentiment about this still rings true (one of the funniest comedies, personally speaking of course) this does suffer a bit more than I would like it to. First off, there are a couple jokes involving women that haven't aged well but the rest is still pitch perfect. Pure hijinks with a blind guy and deaf guy getting wrapped up in a murder and then the incompetent cops try to track them down. Just a pure and simple set up that allows these veteran comedians do their thing.