Merry Christmas, Kenan - S1-E11
Continuity mistake: When Kel knocks the Christmas tree over the star lands by Roger's feet but appears on Roger's head as he stands up.

Starring: Kenan Thompson, Ken Foree, Dan Frischman, Kel Mitchell, Teal Marchande, Vanessa Baden
Merry Christmas, Kenan - S1-E11
Continuity mistake: When Kel knocks the Christmas tree over the star lands by Roger's feet but appears on Roger's head as he stands up.
Continuity mistake: In the episode when it's Kenan's birthday, Kenan and Kel are looking for Kenan's present in Kenan's parents room. As they're searching, Kel throws some of Kenan's parent's clothes all over the place. But then when Kel throws the snowglobe, there is practically no mess, but just a few clothes on the floor - less than before. Some clothes on the bed disappear as well.
Kel Kimble: Kenan, I don't touch a tarantula.
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.