S6 E24
Lumpy's Scholarship about 9:00. Check-out Jerry Mathers dancing freestyle. That wasn't dopey Beaver Cleaver, but confident Jerry Mathers. Looks light on his feet with some definite talent. Frank Bank was pretty good too. Making Sally (Dana Dillaway) deadpan was brilliant. Also, then having her tap-in to dance with Lumpy was very funny cute. A great scene.
https://www.bing.com/videos/search?q...29&FORM=VRRTAP