Even if you have the perfect aiming antenna, you still have to pass the IQ test on adding new stations that your TV set didn't find the first time you aimed the antenna.
I have the "find some stations" thing down once the antenna is pointed somewhere. But then if you rotate the antenna to find some more stations, you gain some and lose some if you run the "find stations " again. I know there is some clever way to just add the newly found stations to the old bunch so you can just then rotate and get tuned in without losing the first set, but it is way beyond my skill set.
So it doesn't matter what high gain super-dooper antenna set you have unless you have enough IQs to get the TV set working right :(