It wont appear on the tv or pick up the controller

Make sur eth controllers are sync to the xbobx in question. Press the little white circular button on the 360 and the one on the top of the 360 contoller (between the shoulder buttons).

Also make sure you have all the cables connected to the 360 and tv correctly, and make sure your tv is on the right channel. If this doesnt help then google for the 360 video reset code, which will reset your consoles display settings to default