Did you ever get this resolved? I've had this issue for over a month, and I have now filed two cases with TiVo. Each time I get an email saying the issue has been resolved, after I redo guided setup, the issue is exactly the same. Now 865 has the wrong guide data as well (time-shifted).
Not only that, but I have been unable to escalate this issue with a supervisor in the United States..... Customer support in the Philippines refuses to transfer me.
Like most here, I paid TiVo for "lifetime" accurate guide data for all my TiVos, in my case a Roamio Pro and 4 Minis.