Help me a get adecent pic in fringe area
 

Hi Everyone
I am new to this and is a first post.
I live 30Mi NE of Toronto, Ontario, Canada and I have attached a radar profile of antennas serving the area.
I am looking for suggestions on an Attic mounted unit that will pull in a decent digital picture from providers. I am mostly looking to get Hi Def quality.
What would you do to get the best and most pictures?
Is there anything else I need in addition to antenna (besides the TVs of course.
I would like to feed 3 tvs is that possible? Is length or type of cable an issue?

Thanks for any help you can offer