Scenes from Seinfeld can help illustrate economic concepts like incentives, thinking at the margin, and common resources. For instance, in The Strike from season nine (the episode that popularized Festivus), Elaine angles for a free sandwich:
Elaine has eaten 23 bad sub sandwiches, and if she eats a 24th, she’ll get one free. She is determined to do it, even though Jerry advises her to ignore sunk costs and walk away.
See also the economics of The Simpsons.