[30cent]

Newbie here, and i just "cut the cord".
Here is my issue, I moved into my house a year ago.(A split level house) There is a antenna in the rafters of my garage that is on a 40ft run to a 2 way splitter in my basement. the splitter then runs to a tv on the the next floor (bedroom with great reception on that t.v.) The other run from the splitter runs to a t.v in the basement roughly 40ft. (also gets good reception at that point.) This run is through the walls and comes out of the wall at a dual coax wall plate. the other outlet on the plate is a dircetv run. This run goes up to the Family room t.v. What i did was run a splitter at the basement dual coax plate and pushed the antenna feed to the family room t.v. this t.v. does not get half the channels my other 2 sets get. So my question is Do i use a preamp like the winegard Ap8700 at the antenna or should i use a amped splitter?
Sorry for the long winded post but I thought i should explain my set up before asking my question.