The second episode of Reaper ... the ongoing flux of House ... the replacement pilot of Cavemen ... the unanticipated debut Carpoolers ... it's a festival!
Update: I'm sorry, but I still don't hate Cavemen like I'm supposed to. The laughs don't come right away and it's occasionally dumb, but it continues to be pleasingly dry to me, and what can I say? It appeals to me in some strange way. For all the talk of it being a ripoff of the Geico ads, it feels very original to me. They have made one character change since the original pilot, rethinking the lead caveman's brother, and it has only helped.
The show would probably be better served running on Comedy Central at 10:30 p.m. than ABC at 8, and I certainly don't expect the masses to take it in. But I continue to say it's an underrated show.
For a conflicting review from a critic I usually agree with, read Brian Lowry's take at Variety. He calls Cavemen a "bland exercise," but I think much more thought has been put into it than that.
Update 2: This mini-review by James Poniewozik of Time splits the difference between myself and Lowry, making some good points. Cavemen definitely lost some edge from the original pilot. However, I think the plotting was better in the new pilot.