It would work fine for that, just make sure the one you look at has a ATSC tuner, and is a HD unit. There ARE FTA units with ATSC tuners that are NOT HD and are only SD, so just make sure, if you find one, I can most likely tell you if it is HD.
I personally have used
Sonicview HD8000 - currently have 3 of them for OTA. - works well all around.
nfusion HD - tuner was fine, the PVR part of it wasn't the greatest, it worked ok but needed a really fast usb hard drive.