Other mistake: When Roger writes the note after Kel glues his mouth shut, Kenan reads back far more than Roger could realistically have written in the short amount of time he took to write it.
Kenan & Kel (1996)
1 other mistake in season 4 - chronological order
Starring: Kenan Thompson, Ken Foree, Dan Frischman, Kel Mitchell, Teal Marchande, Vanessa Baden
The Raffle - S3-E3
Factual error: When the Rockmmores turn the new TV on, the resulting light is impossibly bright. (00:06:20)
Kel Kimble: Aw, here it goes.
Two Heads Are Better Than None - S4-E14
Question: Who screams the second time when Kenan tries to question Kel about the first scream?
Answer: Kel.