Sitcoms written specifically to entertain kids. Can be found all over the Disney Channel (Hannah Montana, Suite Life of Zack & Cody, Wizards of Waverly Place, That's So Raven, etc.) and Nickelodeon (iCarly, True Jackson VP). But kidcoms go as far back as Saved by the Bell back in the day.
I think Sonny with a Chance is a much better kidcom than Hannah Montana!