The Penguins of Madagascar is a TV show based on the Madagascar film franchise. It is one of the sister shows of Monsters vs. Aliens.
They are both animated by Oktobor Animation.
They are both developed by Dreamworks.
They have a 3rd sister franchise called Kung Fu Panda
They are both aired by Nickelodeon.
They've had a number of specials.
They share character Chuck Charles.