I'm not a developer and please correct me if I'm wrong here but aren't these 3 systems ( PC, PS4, X1) built on pretty much the same hardware? Again, maybe I don't know what I'm talking about here, but isn't it easier to port games from one to another this time around? If so, how much delay would there be?
Controlling the tv can be hard at times but I think people need to remember is that the Kinect voice commands don't replace the cable remote. If it's easier to just turn the channel with the remote, do it.