The Time Has Come Today - S4-E25
Factual error: The diary that Brenda finds has a Precious Moments figure on the cover. Wendy, the character who owned it, wrote it between January 1968 (an entry mentions her new year's resolution) and August 1969 (when she attended Woodstock), but the company didn't exist under that name until the late 1980s.
Continuity mistake: When Dylan pulls up to the After Dark, a group of guys come over and ogle his car, but when Dylan enters the club, one of the guys outside is already at the bar. (00:11:15 - 00:11:50)
Brandon Walsh: It was good to see you back at the Peach Pit tonight. I know it took a lot of courage.
Brenda Walsh: Brandon, please, I've had quite enough praise for a while.
Brandon Walsh: All right, you're a huge loser. How's that?
Brenda Walsh: Oh, much better.
Question: Was Valerie Malone introduced this season to balance out Brenda's departure?
Chosen answer: Yes, she was.