Microsoft has announced that it's entering the TV market to provide IPTV a TV over IP solution for large manufacturers. The idea is to provide some sort of unified solution that provides a trifecta of Video/Data/Voice solutions and high margin value added services.
Microsoft seems to be aiming this at over the wire TV instead of over the air TV but it's unlikely that such a device would succeed without over the air capability. We'll see. Such a big undertaking isn't going to get out of the lab (for technical development)/conference room (for the business negotiations) for a few years. In any case, we're unlikely to see it fully flower until IPv6 rolls out at the end of the decade to provide a sound transport method that provides reliable Quality of Service (QoS) and standard security (IPSEC).