Does your picture freeze for a bit then resume or is it a permanent freeze?
I had a similar problem where my phone would stop me getting certain SKY TV channels. It turned out that the aerial cable from the dish wasn’t property shielded. Once I bough a screed wallplate and fitted it, the problem was solved.
Have a look here click here
I’ve not heard of a laptop doing this though. You might want to get it tested.
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