Business Guy is episode 09 of family guy season 08. It was originally aired on December 13, 2009.
When Peter gives Lois’ dad the bachelor party he never had, Mr. Pewterschmidt goes into a coma. Even Dr. House can’t help. Lois gains control of Pewterschmidt Industries which she passes to Peter. He gets power-hungry and fires the board. Mr. Pewterschmidt bounces back and tries to regain control of what he’s built.