User blog comment:Anomymous Writes/Season 4 of Phineas and Ferb/@comment-5037384-20130722182314/@comment-1896159-20130722185808

All of this excitement is making me so impatient! I wish we had a clue as to what the other 3 hour-long specials were. This is merely a hunch, but I'm guess either the AT2D follow-up episode or "Act Your Age" could be one of them (or they could both be)