ALF (ALF #18)

When ALF gets a "snootful" of chemicals, pollen and bugs, it causes him to grow and grow and grow. And that makes it even more difficult to keep ALF's existence a secret in "Melmacattack of the 50 Foot ALF." Then ALF and Willie try to move ALF's stuff in "A Moving Experience." And in "Back Off," while Kate and the kids are out of town, Willie injures himself and has ALF as a caregiver.