Beggars belief that TVs & remotes don't use bluetooth
A single blue tooth remote (or software on a phone) would be entirely capable of controlling a TV, satellite box, receiver, console etc. from a single interface. It could even *ask* the device for the context sensitive functions to present and their spatial layout rather than the usual business of mapping generic buttons to functions. It could even present information from the device such as Now and Next listings, or an EPG, or game status (e.g. paused, teamtalk on/off) to make the remote useful for more than controlling the display.
What I don't get is why this hasn't happened. It's obviously a major step up over infrared and I would have thought an obvious feature for midrange TVs especially the "smart" variety.