Justnowout:
We don't really know what the TV is going to be comprised of yet, but lets assume that it's roughly going to be about a mix of "Sister Ann used to do drugs, now she is a jehovahs witness, see how happy she is", an old guy talking about the bible, caleb/sofia, a play or something else aimed at children and how awfull everything is in russia. In other words, it will be the average convention/meeting experience with better production value.
The point here is that (in my view) many don't really go to conventions to hear the talks which they can't recall afterwards anyway, but to show others that they go to conventions, to chat, because "that is what everyone else does", for the experience, to find a mate or to meet other people. The TV-show should more or less be compared against a DVD recording of an old convention: If this was really exciting to the average dub, DVD recordings would already circulate quite far and wide and be viewed often. I know recordings do circulate and some obviously watch them, but how often did you get a recording and watched it for the great experience in your living room? If you had access to 12 recordings, would you watch one every month? I could be wrong (never was a dub) but I would bet my girlfriend when she was the most in would not have bothered at all.
My point is not this will be a disaster, I would guess half of all jehovahs witness would watch this regularly. But getting most JWs to watch this somewhat regularly is *not* a success unless it translate into getting them more exited and involved than just going to meetings, reading magasines, doing service and once in a while a book. I just don't think TV is very effective at that.
More importantly, this is saying nothing about getting OTHER people involved. So far I cannot imagine this will be effective AT ALL for that job.