TV stations have, since the 80s, had a negative attitude towards their OTA signals. Cable and sat. companies, which means you and me customer, have to PAY local stations for "retransmission". So if you watch your local channels via cable or dish, you pay, but if you watch OTA, it is free. Thus stations have done as nominal an effort as possible. Most stations provide a fixed landline signal to the major cable and dish companies, the tower could collapse and you would not notice.
Now it is shifting. As people "cord cut" a big part of that is OTA TV, and, especially in rural areas and mountainous areas, which is where cable TV came from (as CATV, a way for a town unable to get TV to share a communal antenna too expensive for any one person to afford) the stations need big time upgrades and engineers that show actual knowledge and concern about OTA signals.