Tv antennas like elbow room and receive the best when there are no obstructions in the way , trees and tree leaves , buildings and etc. .
If there are obstructions in the way it is best to mount the antenna in such a manner that there are less obstructions or no obstructions.
With less or no obstructions the digital channels will be received.
Something else to consider.
F.T.A = Free To Air Satellite Tv with a small dish and receiver.
The Tv channels/programing are Free to receive and watch.
All of the American PBS channels are free to receive and watch.
And more English language satellite Tv channels are free to receive and watch.
Here is a web site that is informative to get you going F.T.A.
http://www.ftalist.com.
http://www.saveandreplay.com , sells and will install FTA satellite Tv systems.
There are other business that sell and will install a FTA satellite system.