The Cosby Show: Season 8, Episode 5
Warning: A Double-Lit Candle Can Cause a Meltdown (17 Oct. 1991)
Rudy wants to see a rapper that is performing at a club for older teens. Rudy and her friends lie to their parents in order to get out that evening. When Cliff & Clair find out, they ask Pam to go to the club to keep an eye on Rudy.