In North America, analog and digital TV broadcasts use the same antennas.
If you currently get good analog reception with an antenna, it's probably good enough for digital. On the other hand, if you don't get good analog reception you are probably going to need a better antenna for DTV.
There are two likely explanations for why someone a half mile away can pick up local broadcasts and you can't.
1.
Once your antenna is connected to your HDTV, you have to go into your your HDTV's menu and have it scan for "antenna" or "over the air" channels. Believe it or not, many people don't realize than broadcast channels above 13 are not the same as analog cable channels with the same number.
2.
The TV broadcast signals have to travel from the transmitters to your TV antenna. Is there anything blocking the path between the two? Metal objects tend to refect or bend radio waves and water/dirt and similar stuff tends to absorb them.
Tune your TV to the strongest local station and try moving your antenna around, even hold it out the window in the direction of the transmitter and see what you get.
RT usually gives good answers to questions but I don't know what he was thinking when he started going on about different counties. TV broadcast waves are not effected by political boundaries. Now if there is a big hill between you and the transmitters, that's a different story.
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>The county is muscogee georgia (columbus) no local chanells for satelite. Harris county 1/2 mile away gets local chanells.
Most likely it is because of government rules. The government sets up rules to "protect" over the air broadcast markets. For example, if you live in Chicago they think you should watch the ABC Chicago station. If you wanted to watch ABC's Indianapolis station they say " tough cookies", your eyeballs and the advertising revenue they represent belong to the Chicago station.
The government draws the lines, and if you are on the wrong side of the line and "your" local station isn't carried by the satellite..... Well the government thinks it knows what's best for you.
Now the satellite signals you get are just like the ones that are a 1/2 mile down the road. If the satellite company thought that your satellite dish was on the other side of the line, they would tell your satellite receiver that you could watch the local shows on that side of the line.
A rhetorical question. Why do you think that there are satellite receivers that have paper addresses in the US but are physically located in Canada?