I'm in the same boat, b/c we are too cheap for cable we won't watch!
What I do is this: stand near the antenna. Now, hold the **Plastic part** (not touching any metal) and move the rabbit ears around. Where do they work best? Which direction? Then, when I've found it, I try to replicate where the rabbit ears are really supposed to go, manually move them and try again. Move away and take your hand off the antenna before deciding it doesn't work/does work. Works every time for me (even though I look like a freak doing it sometimes.). I rarely fuss with the loop or the turning knobs.
Oh, and I have discovered that fly-overs (airplanes, helicopters) can interfere with reception, so if it's good and then gets fuzzy, give it a minute.
@Denise P. --don't you know, the foil hat is so the aliens can't take over our brains! (maybe television will facilitate that!:) )