Creative

The TV doesn't interfere with the remote, it interferes with the STB's reception of the remote control signals. A new remote will not fix the issue. You need to try and shield the STB from the light coming from the LCD. Some times adjusting the background light on the LCD can be enough. Just try to move the STB so that light from the screen (including reflected light) doesn't get to it.
It is a well known issue, Plasmas are also affected. Low energy light bulbs can also cause the same issue.