The question is: on a non-activated Bolt, which acts fine as a cable box, full guide, buffers et al; does the roll back to Encore not work? i have tried the sequence and my only conclusion that it does not roll back is that the box is not activated (it does have a cablecard). Second item-- My Cox Contour box is szet to 1080i on my 4k Samsung tv. I can see flaws and lines in the CNN logo. I switch to my Roamio plus which is set to "auto" is smooth with no artifacts or lines in CNN's logo. Conclusion:: Roamio superior in video matters.