Complex sentence: He is best known for his role as Joey Rooney in the original Disney Channel sitcom "Liv and Maddie", which premiered on September 15,2013, as well as his role as Magoo in the Third Fred movie Camp Fred.
Split into simpler sentences: He is best known for his role as Joey Rooney in the original Disney Channel sitcom "Liv and Maddie", which premiered on September 15,2013. Along with his role as Magoo in the Third Fred movie Camp Fred.