I was using a new nexus player in my kitchen and so far everything was working quite well. I moved the player to my bedroom upstairs and now I am getting vertical ghost lines on my screen (even on the home screen). I started moving the player around with little effect. Swapped out different HDMI cables. Even unplugged just about everything else nearby (except the cable box which I guess I could try, but I have another nexus player in another room literally one inch from the cable box without a problem).

The cable box hooked to the same TV works great. Right now, the only thing I can think of is that this TV is much older than the others and is 720p instead of 1080p. Not sure why that would make a difference, though, especially since it works well with the cable box.

I was also wondering if since the player is further from the router, could it be turning the radio on the player to a higher gain thus interfering with the TV.