Example at https://www.youtube.com/watch?v=nXKvsnC6DZA
Usually people are trying to improve or fix their cable signal. Not I. Can anyone tell me if there is a piece of equipment I could purchase for the following? I would like to be able to switch on and off that very bad weather pixelation effect seen on satellite tv during very bad storms? In other words I am looking to be able to recreate the effect of a very bad signal on my cable TV.

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