I have heard that some test patterns do have moving images now and there is a version of the PM5544/5644 that has a moving feature. I know the BBC test card has a moving part now across the bottom, I'm not sure of the technical name.
Testcards J and W have a moving element - the little square at the top of the right hand grey scale column blinks on and off.
You meant left hand column, didn't you?
There are PLUGE dots in the top and bottom part of the greyscale column, which should flash on and off
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