Ceefax has morphed into a digital equivalent. I still read it occasionally for a quick summary of the news. Deborah does most days. Dunno what it's called though. Deborah says the BBC call it "the old red button page" because that's what they call it on the new red button page.
Used to be able to get text information on the TV. Listings, news, subtitles and so on. You could type in three-digit page numbers or press one of four colours assigned to jump to a precoded page, like a web-link. It managed limited colour and block graphics, using the equivalent of the BBC Micro's "Mode 7" graphics.
It lasted until 23 October 2012 against all the odds.
Ah, yes! Ceefax was the BBC's name for their content. Teletext is the generic name for the technology. It stopped working with the loss of the analogue TV signal as it was encoded in all that black and white fuzz at the top of the picture (usually, but not always off the top of the screen).
Normally only saw it when playing with the vertical hold control.
I'm surprised analogue cable still exists these days.
Cable companies converted to digital systems during the 2000s, around the time that television signals were converted to the digital HDTV format, which was not compatible with earlier analog cable systems. link
We still have teletext on our TV. My husband always reads the news there. "Why don't you read them on the computer instead?", I ask. No, he never does. He never googles. He just uses the computer for looking on films/series.
I watch the news on teletext too, when there are commercials on the other channels. I can't stand seeing the same commercials over and over again.
We are famous for "Stockholm syndrome": "Q: Hey, what's up with Matt? His Dad is on social security, his mom got laid off, his sister's kids get free school lunches, he collects federal financial aid for college, and he only makes minimum wage working at Walmarts. Yet he keeps talking about how we need to cut taxes for the wealthy and quit spending so much on social programs. A: Yeah, he thinks he's going to be a millionaire soon. He's got Economic Stockholm Syndrome." (Urban Dictionary)