I had exactly the same problem with mine. Does the remote work when the tv is off? If so could be something to do with the tv set up. In my case, the magic eye doesn't work if the 'optimal picture control' setting is on.
Bizarre but True!!!!
In the end I had to replace all the aerial cable with new stuff suitable for sky transmissions. I was trying to go through the 15 year old stuff from living room, into the loft and back down into the bedroom but it just wasn't having it, putting in new cable sorted it.