Eight Is Enough - Season 3 Episode 5 Milk and Sympathy
Overview: Nicholas has a crush on his teacher and buys her self-portrait at her garbage sale, but tries to hide it from the kids, who think there is a valuable painting underneath. The Bradfords because believe Nicholas's painting may be worth a fortune and dream about how they would spend their millions of it is. Tommy's chances with a popular girl are hurt when he contracts trench mouth.