I just got a used TiVo TCD652160 HD off eBay and I'm not sure it's the problem but wanted to check forum history. The problem is that I get a "signal loss" message and black screen periodically, mostly in commercials or live tv such as a football game. Im not sure if its happened while watching a live broadcast such as Law and Order. I've changed the connective wiring, cable to box, and component wires from Tivo to TV. So I'm left with the cable company,which is WOW, or the Cable card or the TiVo box. Has anyone else experienced this and were you able to correct it? Thanks to all that respond.