There's nothing you can do without spending money.
Your best bet is to get into satellite or cable. If it's HD(for that price tag, probably not) then you want to get the HD box.
But some areas also have HD over-the-air(OTA) broadcasts. You can look that up with whatever local stations you have or google if you are near a bigger city. There are specially made HD OTA antennas that will pick up those signals, your regular antennae and setup can't recieve and decode those signals and the HD-OTA box isn't cheap.
But as far as clearing up the signal you're getting. The only thing you can do is get a bigger antennae or raise the one you've got higher in the air. Adjust the antennae on your roof. You may get better reception by changing the direction and angle around, just like you would with rabbit ears. There isn't a machine that can just rid you of the fuzz, it's only a matter of picking up more of the existing signal.
Okay, I hate to pester this board, but I see an LCD TV for $229 that I want badly! but the problem is -- I don't have cable or satellite, therefore, no clear picture. (I went through this before, the pic was fuzzy)
Is there any device or machine I can buy that will ensure a clear picture with an LCD TV?
I have a VHS/DVD Combo machine (S-video connection).
I have an amplified antenna.
I live in an apartment near the Lake (that's the problem why no clear picture).