this post was submitted on 14 Nov 2024
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Showerthoughts

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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.

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[–] RedIce25@lemmy.world 111 points 1 week ago (4 children)

CRTs was in use well into the 2000s

[–] davidgro@lemmy.world 46 points 1 week ago (2 children)

Even before the 2000s they started showing a blue screen instead of static.

That wasn't just a digital or flat panel thing.

But of course old sets were around for a long time.

[–] Catoblepas@lemmy.blahaj.zone 17 points 1 week ago (4 children)

My memory of the exacts here are fuzzy, but I think this depended on whether or not your TV picked up digital signal, analog, or both. I remember around that time we had a TV that would pick up static on some channels and have a blue input screen on others.

[–] Aceticon@lemmy.world 13 points 1 week ago

It's definitelly an analog over the air TV thing.

The way digital works you would either get a "No signal" indicator (because the circuitry detects the signal to noise ratio is too low) or squarish artifacts (because of the way the compression algorithms for digital video are designed).

[–] FlihpFlorp@lemm.ee 5 points 1 week ago

I remember back in the Wii days when I was young we had a flat screen that would go to the digital pattern with no input. However sometimes once in a while it would get that static loud no signal so I think mine had both

I don’t really have a point here just wanted to share

[–] davidgro@lemmy.world 4 points 1 week ago

I'm talking long before digital channels existed. (In the US anyway)

[–] entropicdrift@lemmy.sdf.org 4 points 1 week ago

Yeah, for instance the semi-ubiquitous "small TV with a vhs player built in" that was in a ton of mini-vans and kids' rooms well into the early 2000s only supported analog cable/antenna signals, so it would give the black and white static when there was no signal.

[–] Agent641@lemmy.world 4 points 1 week ago

What are they hiding from us?!

[–] popekingjoe@lemmy.world 15 points 1 week ago (1 children)

Yeah I was still using a CRT as recently as 2012. I think OP means analogue TVs.

[–] Hobbes@startrek.website 3 points 1 week ago

Yeah you're right.

[–] abfarid@startrek.website 10 points 1 week ago

Technically, it's not about the display technology, but instead about the signal/tuner. More specifically if it's analog or digital. Some modern TVs still have analog or hybrid tuners for backwards compatibility and regions that still use analog, so they can display static. For instance, in Ukraine we finished the switch to digital TV only a couple of years ago. If your TV had no digital tuner (as was the case for many) you had to buy a DAC box. Retirees/pensioners got them for free, sponsored by the government.

[–] Catoblepas@lemmy.blahaj.zone 9 points 1 week ago (1 children)

Yeah, my youngest sibling has definitely seen CRTs. My niblings probably haven’t, though.

[–] Deceptichum@quokk.au 5 points 1 week ago

I thought they were teaching it in all the schools? /s