The Light at the End of the Tumble - S6-E6
Continuity mistake: Jennifer brings Craig a plate of cookies, which he politely declines and continues to flip the pages of his magazine with his right hand. After Jennifer asks him what he plans to do with his new found fortune, a cookie has magically appeared in Craig's right hand. (00:13:25)
Desperately Seeking Samantha - S6-E5
Continuity mistake: As Ernie the cook is exiting the restaurant kitchen with full plates of food in each hand, Samantha enthusiastically surprises him and he immediately hugs her, but his hands are now empty. (00:17:30)
A Christine Runs Through It - S6-E22
Continuity mistake: Jennifer's hair is suddenly a shoulder-length bob halfway into the episode when it was long and curly from the start, and in the prior scenes.
