Hi Mroder,
Thank you for coming in and choosing to have your services with us 
I am very sorry to learn that the TiVo's not been working as it should, that heart indicates an issue. I have checked and can see an SNR (Signal to Noise Ratio) issue F004525431 with an estimated review date of 24th June 2016.
I am sorry for the inconvenience and if you can bump this thread closer to the date I'll be with you again.
Thank you.
Ben