I'll add this, as I contemplate how I might trick my TV into holding two separate signals' stations in memory without Auto programming every time I would switch.
http://www.hdtvprimer.com/ANTENNAS/merging.html
I still wonder about combining the signals into one run without a switch, but anticipating the outcome seems impossible.
I could go with a dedicated UHF that was more directional to the SE that had a less robust front-to-back profile.
I'm reading that with a rotator you have to auto program every time you reorient the antenna.
Any suggestions for a single antenna solution? If I give up on candada? Maybe just the 1080 and an FM? Those NW stations are only 7 miles away.