I cut cable and watch OTA mostly on Roamio. However, I noticed that there are unscrambled channels still coming in from my cable. I know Roamio (basic) works with both OTA and Cable... however not sure how to set this up so that I don't have to manually replace coax for OTA and cable? Is there a splitter that works with remote? Also, how does Roamio take care of channel setups and season passes if we switch between OTA and Cable? Many thanks!