My parents have a satellite dish and I can't stand watching tv over there. Besides the general bad compression of the video, whenever it's windy or rainy or snowy, the signal breaks up. It's ugly!So, how can you create this ugly effect yourself? I used a plug-in aptly called 'Digital Interference' which is part of the Buena Effect Essentals package. This effect combined with a full tint to black when the signal is lost.
You can get a free demo of Effect Essentials here.
View the sample movie
Download Preset - Satellite.ffx.zip (AE 7)