That was easy !
Reason for UHF tuner is Montgomery had one of the earliest,
WCOV ch 20. Also that was NTSC days. VHF over the flat terrain
could go an easy 75 mi to way over 100 depending on the antenna,
set, elev etc. I stayed in a hotel on Mt. Equinox VT. ( elev < 4000') when
I was a kid. Room had a busted up Westinghouse POS TV. Philadelphia
was easy at apx 300 mi.
73 Zeno
LFOD !