I noticed I wasn't getting any antenna channels recently, and it had been since I'd attached a small chuck of cable between my antenna and my Tivo HD box. Turns out when I tightened the antenna cable onto the TiVo box, I tightened it too much and broke the connector off the motherboard. Any advice on how to get this fixed? Any thoughts on where to buy the part-- I can probably solder it back on if I knew where to buy one. Maybe RadioShack?