The static on old CRT TVs with rabbit ears was the cosmic microwave background. No one in the last 25 years has ever seen it.

    • LovableSidekick@lemmy.world
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      3 hours ago

      Like when the black and white world suddenly got colorized! My grandpap told me about them old days - when the lawn, the sidewalk and the sky were just different shades of gray.

  • bonn2@lemm.ee
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    4 hours ago

    2001 here literally grew up with CRT static, you have your years a bit off there.

    • TwanHE@lemmy.world
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      2 hours ago

      I was about to say, i think we had a CRT till about 2010. My grandma still has one upstairs so even my youngest cousins still grew up with it.

    • LovableSidekick@lemmy.world
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      3 hours ago

      Random radio sources, but a small part of the signal is CMB. I wasn’t sure what you even meant by thermal noise but I believe it’s a phenomenon of flatscreens. I found something that said it was “similar to snow on analog TVs” - so apparently there’s a difference.

      Funnily, Google AI says, “In the 1940s, people could detect the CMB at home by tuning their TVs to channel 03 and measuring the remaining static after removing other sources. This allowed them to prove the Big Bang before scientists did.” So they had that going for 'em, which is nice.

      • piecat@lemmy.world
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        2 hours ago

        “Thermal Noise” is a phenomenon where everything makes EM noise, just from thermal energy.

        If you were to put such a TV in a faraday cage, with an RF termination, you would see something similar. Because noise is inherently part of the circuitry and amplifiers.

  • Blackmist@feddit.uk
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    6 hours ago

    Last time I thought about static I wondered why colour TV didn’t show colour static.

    Turns out the colour signal was on very specific frequencies, and if it wasn’t present, it would assume it was a black and white signal and turn off the colour circuit.

  • mlg@lemmy.world
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    4 hours ago

    Dude Flatscreen HDTVs were expensive even in 2008, and cable actually got worse for higher price so most people were hooked into local broadcast.

  • Mr_Peartree@lemm.ee
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    5 hours ago

    Umm… I had a CRT until 2009 and even sold it to someone.

    Was it just me or has anyone seen or make out patterns while staring at it? I sometimes found it amusing