So, after a week or so of Dexter & Brotherhood not tivoing on ShowtimeHD (877) here in Boston on my new TivoHD - I finally figured out that I am not receiving ShowHD, StarzHD or CinMaxHD on my new TivoHD. I am subscribed to them with Comcast and signal shows at 100% strength.

I have not had the time to check my ability to receive and tivo all other channels, but I can tivo 2 channels at the same time (ex. HBOHD and CBSHD).

I am not sure if this is a hardware issue (more likely not) or a Comcast or CC issue.

I just went into System/Diagnostics and Tuner 0 is showing an association with CC 1 and that CC 1 is an M-Card. Tuner 1 is shown as an association with CC1 also with CC 1 being an M-Card. CC 2 is shown as an S-Card operating normally.

Is this correct? And if it is not, why would only Starz, Cinemax & Showtime HD channels be affected??

When Comcast installer came he installed 2 CC cards. I asked him if they were both M cards and he said yes. I then told him that he only needed one M card with the TivoHD. He indicated that he had just done another TivoHD CC install and that 2 M cards were necessary since the Boston Comcast system was not yet set up for full M card capability/use.

Should I try a system reset?

Any suggestions/thoughts will be appreciated.