What's On Tonight: Caddyshack, The Firm, Summertime

Caddyshack, 9:30 p.m., Golf
Is there any better way to spend a hot, muggy July Saturday night than locked in an air-conditioned room reciting all the dialogue along with Chevy and Bill? There is not.
 

The Firm, 10 p.m., NBC
Chapter 21. Seriously, take this out back and shoot it.

Summertime, 8 p.m., TCM
Or, if Caddyshack is not your thing (and if it is not your thing then I question our friendship), there’s this: “A married art dealer sweeps an Ohio secretary off her feet in Venice. Starring Katharine Hepburn.”