I have 6 of the X10 cameras around my house that use the 2.4Ghz transmitter. Distances are weird. I have one that wouks fine through 2 brick walls and 2 sheetrock walls. Another one barely works even though it's in plain sight of the receiver. It's not the device, I've switched them around. It's the location. I have NO idea why it doesn't like that particular location.

In my house I run things a little different than most. Since it's just me and my wife, I disconnected the house cable system from the cable box and had the cable guys run a line directly to the digital reciever in the den. The reciever feeds the Tivo which feeds the VCR which I plugged the output of into the old cable from the house cable system. All the TV's in the house stay tuned to channel 3. This way we can watch Tivo, VCR, DVD, or regular cable anywhere in the house. The drawback is that we have to watch the same thing EVERYwhere in the house unless I set the VCR to pass the cable signal through. Radio Shack remote extenders make you forget the Tivo isn't in the same room with you no matter where you are. Works quite well for us. The nice thing is that I can get up, walk to thje bedroom or office and whatever I was watching is still playing wherever I go, and I never notice that the TV in the bedroom is on and have to go turn it off since the audio is exactly in sync.