The pilot of NBC’s new comedy “Go On” aired a couple weeks ago during the Olympics and makes its timeslot premiere Tuesday. Matthew Perry stars as Ryan King, a man who unwillingly joins a support group after his wife’s death. Yes, Ryan couldn’t beeeee any more Chandler Bing here, but it works. Plus, there’s a good supporting cast and a big heart that helps balance the jokes with the emotional moments. There’s a good chance “Go On” could be my favorite of the new comedies this fall.