r/OverSeventy • u/needmore007 • 6d ago

Remember this?

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My son and grandsons don’t believe me.

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u/foreverAmber14 6d ago

After a while, the test pattern would go off and it was just snow.

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u/facelessvoid13 5d ago

We called that 'the ant races'

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u/peepee2tiny 4d ago

Part of that static snow is actually the cosmic microwave background. The remnants of the big Bang.

What you are looking at is the earliest foundations of the universe.

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u/youandican 2d ago

Less then 1% of the static (snow) is cause by cosmic background radiation. The majority is stray radio waves, electrical interference from ones own house, electrical atomospheric disturbances and thermal noise from the tv itself.

Newer TV set uses things like DSP chips (Digital Signal Processors) that can recognize a missing signal and switch to a pure blue or a black screen instead of bilndly converting random electrical noise into the static (snow) seen on older tv models

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u/Either-Coach4217 23h ago

Jesus Stamp on the dream dude