Stare At The Sun

Pretty simple question:

I live in a big (college) apartment complex, and we get free Direct TV, however, the quality of the picture is horrid. Lots of snow, poor sound, you name it, its terrible.

I have a very nice TV, so I know it's not that, but I'm wondering if there is anything I can do, or some small thing I can buy to up the signal strength, because watching TV like this is basically unbearable.

Thanks in advance!