gooders said:
(apologies for the dumb questions, but a guy has to learn)
And I need an external antenna to get the OTA ones? or will that all depend on the quality of the signal in my area?
The only dumb questions are the ones not asked.
The answer is: It depends.
If you live within 20 miles of the transmitter chances are a simple good quality indoor antenna will do the trick. After that, it is all in the particulars. Terrain, obstructions, trees, etc.
I can tell you that I have a little amplified RCA rabbit ear antenna sitting in my window on the second floor of my house. With that antenna and no adjustment required now (after fiddling with it for close to an hour), I can receive all the local digital channels (5, 9, 12, 14, 19, 43, 48, 64) and several 4* of the 6 Dayton channels (2, 7, 16*, 45 -- no 22 or 26). The signal is perfect and stable. Interestingly enough, I get more channels and a better lock on these channels when the VHF elements are all the way down. My guess is "ghosting" issues (multi-path).
All the local channels have transmitters within 15 miles. The Dayton channels have transmitters about 40-50 miles away
*16 comes in only if the wind is blowing from the north.

Very marginal signal.
See ya
Tony