FWIW - my local abc and fox out of Columbus OH were replaced with Cleveland stations. The Cleaveland stations are still there. Dish Promise says no issue - funny, they have had a dispute with WHIZ for several YEARS.
Being in Zanesville - I agree. Impossible to get WCMH (NBC) in Columbus. Difficult in my location, using a 35' outdoor antenna, good RG6 and iffy with wet or windy conditions - plus I am only 4 miles from the tower. Seemingly I'm in the shadow and have a weak signal. Lot of hills here.
OTA adapter, IMHO is just plain crap. I live 4 miles from the transmitter. I have a new outside antenna. Into the TV itself, it works fine. Into the OTA constant dropouts and re-boots of the Hopper.
I'm fast approaching dropping Dish.
I've never had mine reboot while watching live. It has rebooted while replaying a recorded program with a bad signal.
IMHO - the Dish OTA does a terrible job. Watching TV via the TV the picture rarely drops, with the OTA if a bird's wing flaps it breaks up.