I don't watch any religious shows on TV, and if they've been allowing all those other preachers to be on the airwaves for years raking in the big bucks from their followers, then the atheists should have the same freedom of speech. I was raised as a Catholic as a child, and as an adult have no longer followed any religion or gone to any churches, to me it's just another business.
I'm not going to badmouth Christians, but as Rockr said, many of them are extremely pushy about others conforming to their beliefs, and they attempt to dominate others all the time. The born agains drive me insane, you can't have a conversation with them and not have a 'quote' from the bible in every other sentence, as they constantly want to convert you so you can also be saved. Meanwhile, the ones I've met personally are just low lifes who were thieves, woman beaters, druggies, etc., and being 'saved' has not changed their characters.
I think any religious or non-religious group should be able to have their own television channel in America, including the Satanists...people who are interested will watch, and those who aren't can ignore the channel.