There are a lot of clips over on YouTube. There is the famous Gabe Kaplan/ Lee Majors foot race in which the supposedly non-athletic Welcome Back Kotter comedian thoroughly thrashed the tiny little bantam rooster. A Battle of the Network Stars specialty were the countless swimming events, excuses to get sexy actresses into tight, low-cut single-piece swim wear. Notable stand-outs were Lynda Carter, Erin Gray and a young, hot Heather Locklear looking fabulous in a dunking tank episode. Cold water does wonders to a woman's nipples.
The glue that held this together was a superb Howard Cossell at the apogee of his announcing game. "This is not about money or glory. This is for pride." (Said as Lou Ferrigno practically single-handedly pulls the Mark Harmon team into a muddy, gooey pool of water at the culmination of a tug-of-war.)
TV was so much better when I was a kid!