Obviously the DSE one is out with its hopless IR sensor, but are any of the others sensitive enough that they could be behind the screen looking up/down and still have a reasonable remote angle.
Reasonable as in better than the hopeless DSE boxes sensor.
Seems a gap in the market for one to go on the vesa holes and hide and have a remote sensor, like those old scart plug digital tuners that were popular in the UK many years back.