Gimme a Break! (1981)

Season 2: Episode 10

Angie tells Nell that she is going on a trip to Mexico with the money she made by selling vaccums. She urges Nell to attend a gathering where the operator of the sales talks about how rich everyone is getting off of the product. Nell then has a party at the house and invites people to it and demonstrates the amazo vac. However, it does not work the way she intended it to, and goes back to another meeting and tells everyone that the salesman is a fake after doing research on him.