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For those living in London, one of the Mayoral Candidates is promising to bring back ceefax. Not sure how he'll do it, technically I believe DTT can carry telet

by ta1243 3y ago

For those living in London, one of the Mayoral Candidates is promising to bring back ceefax. Not sure how he'll do it, technically I believe DTT can carry teletext data, although I'm not sure if modern TVs will process it. Back in the day I believe ceefax used to be generated out of a couple of beige tower PCs in a BBC office somewhere.

zinekeller 3y ago
> although I'm not sure if modern TVs will process it. Continental Europe still runs teletext-over-DVB so probably "just works".
masfuerte 3y ago
> one of the Mayoral Candidates Count Binface
astrosi 3y ago
The candidate in question is Count Binface - who is part of a long British political tradition of joke candidates. Safe to say I think the implementation details of this policy probably aren't needed. https://www.countbinface.com/2024-manifesto https://www.countbinface.com/2024-manifesto
- ta1243 3y ago
  Sometimes joke candidates get elected. 2008 for example. > Safe to say I think the implementation details of this policy probably aren't needed. UKIP never got into government, but their policy did get enacted.
Retr0id 3y ago
Modern TVs support "HbbTV", and it's enabled by default in many locales. It's essentially HTML-over-DVB (including javascript), which is absolutely terrifying when you realize that there's no encryption or authentication, and that it's something you can broadcast for yourself with a cheap SDR, and that TVs run outdated browser engines with root-equivalent privileges.
- phantomathkg 3y ago
  Hbbtv only embed the URL into the stream. The rest of the JS part came from internet still.
  - Retr0id 3y ago
    Maybe it first worked like that, but it's certainly no longer the case in newer versions. I've personally compromised a not-network-connected TV using only broadcast signals. HTML+JS can be pushed via the "DSM-CC object carousel"
    - ldite 3y ago
      Funnily enough my memory of trying to implement the DSM-CC specs is that they are broadly equivalent to a denial-of-service attack on your brain

by ta1243 3y ago

zinekeller 3y ago

> although I'm not sure if modern TVs will process it. Continental Europe still runs teletext-over-DVB so probably "just works".

masfuerte 3y ago

> one of the Mayoral Candidates Count Binface

astrosi 3y ago

The candidate in question is Count Binface - who is part of a long British political tradition of joke candidates. Safe to say I think the implementation details of this policy probably aren't needed. https://www.countbinface.com/2024-manifesto https://www.countbinface.com/2024-manifesto

ta1243 3y ago
Sometimes joke candidates get elected. 2008 for example. > Safe to say I think the implementation details of this policy probably aren't needed. UKIP never got into government, but their policy did get enacted.

Retr0id 3y ago

Modern TVs support "HbbTV", and it's enabled by default in many locales. It's essentially HTML-over-DVB (including javascript), which is absolutely terrifying when you realize that there's no encryption or authentication, and that it's something you can broadcast for yourself with a cheap SDR, and that TVs run outdated browser engines with root-equivalent privileges.

phantomathkg 3y ago
Hbbtv only embed the URL into the stream. The rest of the JS part came from internet still.
- Retr0id 3y ago
  Maybe it first worked like that, but it's certainly no longer the case in newer versions. I've personally compromised a not-network-connected TV using only broadcast signals. HTML+JS can be pushed via the "DSM-CC object carousel"
  - ldite 3y ago
    Funnily enough my memory of trying to implement the DSM-CC specs is that they are broadly equivalent to a denial-of-service attack on your brain