I have a question about Powerline equipment. If I was to use a Powerline kit to send a signal to my living room from my office and then wanted to send another signal to another bed room, would I need to by a completely new kit for the bedroom? Or, could I just buy another single adapter to send to the bedroom. Look at the illistrations below.

Powerline signals will go as far as the electrical system allows it to go. Things like old wires, surge protectors and breakers will influence this greatly. In general, the signal should go throughout a house so you just need one adapter at each location you need to tap into the powerline signal.