Jefferson Darcy was really funny when Al would make fun of Marcy (calling her a chicken usually), and then you had Jefferson standing right behind her laughing also. Then Marcy would turn around and Jefferson would change his facial expression really quickly and turn against Al. That was classic.
Married With Children jumped the shark when Seven was left at their house...those episodes were horrible. It was already dead when Amanda Bearse became director although the episode where Marcy's cousin is a lesbian and befriends Al was cool.