Thanks for the replies! I guess we will have to wait and see what happens once its all done as far as how my signal goes.
That's really what it boils down to. The VHF-Low stuff will all be gone, so you should only have to worry about an antenna that can get VHF-High (VHF3, 7-13). Here in Kansas City, we have all national networks (including MyTV, ION, and so on) represented, and only one channel (CBS affiliate 9) will be in VHF post-transition.
I laugh at all the people who just put up a uhf antenna only and now they will need to add another antenna ...
My little 2-bay UHF cat whisker antenna works acceptably well for analog 4, 5, and 9. Works friggin' outstandingly well for digital everything. I am less than 5 miles from most towers, though. Even if I were farther away, not inside the crossfire, I could use a more directional UHF antenna and get similar or even better results.
I do have trouble with the broadcaster on UHF 42 due to a high crest between here and there, so I built a 6-element YAGI antenna just for that frequency/tower. I don't even use a signal inserter; just plug both antennas into a splitter turned backwards, and it's fine. You could easily build a dipole with a director and a reflector for each VHF channel you're not getting, and have way more fun that putting up a big combo antenna.