If this lasts longer than a season I can see this being really good. I like the comedian cameos. Also Impastor is surprisingly OK and the dude that was Lex Luthor on Smallville is great.
watched the whole first season, I'm not a huge gaffigan fan - thought his book was just awful and couldn't read more than a chapter or two - but the show is surprisingly sweet and funny. Pretty bland humor but it works, the finale was pretty good too. Hope it gets renewed, can't see it costing much.