an amplifier can only help with a weak signal.. can not do anything if nothing is at the antenna..
Over the Air .. height is key.. second is elements on an antenna
get a Home antenna and a long mast.... up, up, up... it needs to look over the curve of the earth AND trees, buildings, hills,... even 50 miles.
Years ago,, I had a 80 foot tower.. with a 20 foot long antenna for the television.. for our home.. and 2 amplifiers.. one on the antenna and a second at the television.
and installed several for the others in my home town.