From what I gather i'm probably not going to be able to find a wireless keyboard/mouse with that kind of range(10 ft straight shot, through a wall). So, what I thought of doing was, getting a wireless mouse/keyboard that communicates with a USB receiver. Then I could use this...
http://www.newegg.co...N82E16812191054
which is a 9.8 usb cable extender, hook two of those together and then have a USB hub connected to the end of those cables and then plug the receivers for the mouse and keyboard into the USB hub in the other room with the TV. My question is, will that work? Can you plug two extenders into each other and then a hub into that and have the receivers work?
I've attached a really cool drawing of what i'm talking about, kinda hard to explain...