I've been a TiVo buyer since Series 1.
Bought a Premiers XL around June 2012.
Worked well in general with Comcast here in Western PA.
Had few natty problems from time to time:
(All Now Solved, some with work arounds. Thank you Margret, TiVo, and TiVo Community Members!)
Had intermittent C133 Network problem. Solved by using an Apple Airport Express as a range extender on my WiFi network. Perfect operation since.
(I am not able to install a direct hardwire connection between my router and my TiVo.)
Had a problem, known in the Forums as "20.3.8 black menu bug..."
Problem solved with a work around by setting my TiVo video out to 1080i/p only.
Works perfectly now. I hope TiVo will fix in a future update for those who are perfectionists.
Thank You TiVo for the amazing Premiere and Roamio!
Everyone, please feel free to share your comments, good or bad on this thread.
And most of all, thank you to all the TiVo Community members who help all of us find fixes and optimize our TiVo Systems!