Beverly Hills, 90210 - Season 9 - Eps 23: The End of the World as We Know It
Kelly and Matt babysit Erin, and have sex in the living room after she goes to sleep. They do not realize that Mel and Jackie have set up a video camera to observe prospective nannies with Erin. Erin switches the tape with a copy of ""There's Something About Mary,"" and the illicit video ends up in Dylan and Gina's hands. Dylan becomes furious, prompting Gina to suspect that he still has feelings for Kelly. She believes that Dylan is trying to overcompensate by arranging a private concert by Monica, and tricks him into admitting that he slept with Kelly in Mexico. Matt breaks up with Kelly, who reminds him that he was married at the time. He forgives her after she insists that she never revealed the truth because she did not want to add to his woes. Donna asks Wayne, a good-looking pro beach volleyball player, to model her new line of men's wear.
About Beverly Hills, 90210

Title: Beverly Hills, 90210
First Air Date: 1990-10-04
Last Air Date: 2000-05-17
Status: Ended
Rating: 7.4/10 (from 740 votes)
Language: EN
Seasons: 11
Total Episodes: 284
Network: FOX
Genres: Drama, Soap
Production Companies: Unknown
Synopsis
Follow the lives of a group of teenagers living in the upscale, star-studded community of Beverly Hills, California and attending the fictitious West Beverly Hills High School and, subsequently, the fictitious California University after graduation.
Cast

Jennie Garth
Kelly Taylor

Ian Ziering
Steve Sanders

Luke Perry
Dylan McKay

Brian Austin Green
David Silver

Vincent Young
Noah Hunter

Vanessa Marcil
Gina Kincaid

Tori Spelling
Donna Martin

Lindsay Price
Janet Sosna

Daniel Cosgrove
Matt Durning

Joe E. Tata
Nat Bussichio