We have Roku and are enjoying the channels. I am writing to ask about a channel that is just a short ad for Roku telling us to "activate" (with a promo code) to get additional channels and to be able to use cell phone as a remote and stating that its free (maybe just free to activate?). I'm wondering if this is to add premium service because it doesn't make sense, if Roku adds channels, why wouldn't we just see them? Help!