I'm very sorry to read about the 7400 error on the TiVo I would like to offer some help and whilst looking into the services I notice you're being affected by and SNR (Signal to Noise Ratio), outage. This outage will affect your services and is currently being worked on. I've included some details for your own records below:-
Outage reference: F004511113
Est review date: 20th June 2016
My apologies for this and hope that the services are back with you soon.