I used to watch CFHelp most of the time, depending on the content.
I was a caller on episode 325 (re password security)
I sent a question for the fun of it, did the call about a month later, then was aired about 6 weeks after that. So someone with a real problem I think would have resolved it a lot sooner. So it was more of a info, help show in a way.
I enjoyed the show, it felt more geeky I guess,
when Amber left, I was depressed (LOL)
I watched Lab a couple of times, I agree with a previous post, some of them were as personal as a plank of wood.
The only other show I watch on G4 is Attack of the show. (which I like)
and it is at least a live (same day show and very current on whats new)
Leo was a great host, but the Lab didnt really capture me as much as Call f H.