Wikisimpsons - The Simpsons Wiki
At one point, Homer tried to give up rage, and Bart quickly realized that would eliminate his source of material, as Angry Dad was largely inspired by Homer's tantrums. To save the cartoon, Bart built an elaborate trap to make Homer mad. Soon after that, though, Bart learned that BetterThanTV.com had gone out of business and no more Angry Dad episodes were being produced, making the trap pointless. Bart then hurried home to try to stop Homer from falling into the trap, but it was too late: Homer had already fallen for the trap, gotten provoked into an extreme rage, and then gone on an angry rampage all over Springfield. Happily, it worked out for the best as Dr. Hibbert discovered that Homer's rages were actually beneficial for his health.
These are the episodes of "Angry Dad".