I think jwtv would be off putting for the more conservative JWs, in UK for example, we don't go for the egotistical, self-congratulating thing generally and if it comes with an American accent and over the top gestures and fake expressions of how much they love and want to help us, even worse! Smacks way too much of tellyevangelism.
But what I think would do even more damage is seeing the GB convention talks where they're less careful, especially Anthony Morris re child baptism etc, 'explain that one to heaven' yuk! Also the praising of parents shunning their kids, talking about Armageddon dead as hot dogs on a spit, these talks could really wake people up, I hope a lot more of the r&if see those videos.