Hey everyone, I just bought a 42" LCD and had the same issues. HOWEVER! I was able to find a work-around. I got some electrical tape and covered 90% or so of the IR sensor on each of the devices I use and everything works like a charm. The obvious: it blocks out most of the random IR interference from the TV. Also, make sure you position the tape accordingly for optimum reception. Took me a few trys but, I finally got it to work just about anywhere in the room.

P.S. I registered just to post this solution so, I hope it helps :)