The Drew Carey Show (1995) : 4x13

Drew's parents arrive unexpectedly for Christmas. They assume that Celia is his maid, and he is reluctant to reveal the true nature of their relationship. Celia's son, Chip, shows up at her house in the middle of the night. He has come to visit for the holidays. When Drew comes downstairs in Celia's bathrobe and tries to make conversation, Chip punches him in the face. Drew's parents are horrified when he finally tells them that he and Celia are dating. Celia and Chip come over to Drew's house to have dinner with Drew's parents and Steve. It proves to be a disaster. Meanwhile, Lewis and Oswald agree to help Mimi with door-to-door Christmas tree sales after she fires an associate. Kate comes along to help supervise the guys. They make very few sales (aside from Wick buying two trees to get them to go away), and accumulate several fines.