I have a strange question for y'all. I have the Radio Shack pyramid IR extenders as well. I use it so that I can control my TiVo from another room in the house. The strange thing is that on the side of my remote TV, the LED on the pyramid goes on when the TV in that room is on. There's no physical connection from the TV to the pyramid. How the heck does it know that the TV is on?

- Jon