Barking Orders (S01E25)
Poochini eats an entire roasted chicken.
Massive Hound (S01E35)
Poochini is put on a diet of exercise and alfalfa, but the alfalfa only causes him to inflate, which the Whites mistake for weight gain.
Remote Control (S01E48)
Billy gets fat from eating birthday cake.
Noticing his weight, Poochini decides to begin exercising. Simultaneously, Walter keeps gaining weight. In the end Poochini gives in and starts eating again.
Billy makes Poochini drink several cans of soda in order to recycle them for money.