Tonight, after another night of Olympic celebration (fingers crossed for Misty and Kerry), NBC hopes you’ll stick around for a commercial-free preview of their newest show GO ON (airing at 11ish/10ish Central). The show stars Matthew Perry as radio sportscaster Ryan King who is back at work after the tragic death of his wife.  When his first day back doesn’t go as planned, his boss Steven (John Cho) requires him to attend a support group for “life change.”  The group