OH and I missed the part about "not able to get HDTV"
I have the older technology and am watching HDTV over the air as I type.
The antenna is a radio antenna (Television is a special case of Radio think radio with moving pictures)
IN the old days of ANALOG Tv the stations broadcasts on specific channels. numbered originally 1-13m then they dropped 1 and went to 2-13, then they added UHF 14-83 then dropped the higher end so we had UHF 14-69,, Thus they settled on 2-69 Each chabnel is specified by FCC rules.
Thus the antennas were deisigned to pick up either 2-69 or, if old enough 2-83
Well with the chanbge to digital ,, from the view point of the antenna, ,Not many stations in VHF and in the VHF-Lo (2-6) I think there are only a few remainnig nation wide if any Many noved to UHF for reasons technbical I wont' go intot. BUT THEY ARE STILL THE SAME BROADCAST CHANNELS.,
The difference.. Well where I am now 12 is still on 12.. But if I move about 2 miles I get different stations (Detroit collection) wher 2-1 2-2 and 2-3 (Chabnnels 2) are actually on broadcasting on the old Channel 7,,, Channels 7 noved to 40 sonething (I think 41) UHF stations also moved frequency some up some down. YOu (normnally) Do not need to know the actual carrier frequency (Broadcast channel) as the TV figures it out when you SCAN FOR CHANNELS.. but you do need if you use a Sensar Pro like I do,, But again the SENSAR PRO gives you the primary (Strongest) then you can scan and ask the TV for what other broadcast channels to search. I peak on one of the lower strength signals here