I am sorry to hear that your having issues with the TiVo® box.
When I checked your account, there is an issue with the power levels and high number of time-outs within a short period. This will have an impact on the TV service. For this I would like to book an engineer to check this for you. I've sent you a PM (red envelope icon, left corner) with some details for you to confirm please. Once you have replied I can go ahead with the appointment.