Advertisements I have been having an issue for the last month with my tivo bolt tiling. It does it on various channels, both HD and SDV. It does it at different times of day. I have had cox come out four different times. They have replaced all the cables outside and in. They say it's not a signal issue. How can I determine if the Bolt has gone bad? We have replaced the tuning adapter twice. We did not replace the cable card. No splitters are being used. Any advice?