I listened for an hour and forty minutes and then gave up.
Unfortunately, I don't think anyone coming to the show without any predisposition to believe either side would have been convinced of the falsity of the "Truther" side.
Debates like this just don't work. One side says, "Blah, blah, blah" and the other says, "Halb, halb halb", and unless you have considerable understanding and knowledge you just can't evaluate either.
I found Gage pretty funny and had heard (or read) it all before (thank you JREFF). Craig was good in his areas of expertise but sort of trailed off in other areas.