For more information:

* https://techradar.com/news/internet/how-teletext-and-ceefax-...

* https://blog.adafruit.com/2017/01/13/teefax-reviving-teletex...

* https://github.com/peterkvt80/vbit2/wiki

FYI peterkvt80 is working on a new page about teefax: http://dailyprog.org/~peterkvt80/

The Italian national television has a beautiful online version of its own teletext: http://www.servizitelevideo.rai.it/ (in Italian, of course)

Germany.

ARD: http://www.ard-text.de/

ZDF: https://teletext.zdf.de/teletext/zdf/

According to http://www.daserste.de/specials/ueber-uns/ard-text-erfolgrei... there were four million users a day in 2014 for the ARD teletext, with a peak during the football world cup with 8.57 million users in a single day.

The Netherlands, the public broadcaster NOS:

https://nos.nl/teletekst

Almost all of the ones mentioned by you and others here are listed at http://radios-tv.co.uk/Pembers/Teletext/index.html#After , and more besides.

It is interesting to observe that Bayerischer Rundfunk uses level 2.5 Teletext, with the bitmapped graphics. You can see more example BR pages at http://zapping.sourceforge.net/Zapping/Zapzilla.html .

Finland:

Yle: http://yle.fi/tekstitv

MTV: http://www.mtvtekstikanava.fi/

Some random picks:

Pollen map: https://yle.fi/aihe/tekstitv?P=418 - Statistics graph on an article about road traffic deaths: https://yle.fi/aihe/tekstitv?P=865#3 - SMS chat: http://www.mtvtekstikanava.fi/new2008/892-01.htm - Helsinki Airport arrivals: https://yle.fi/aihe/tekstitv?P=427 and http://www.mtv3tekstikanava.fi/new2008/605-01.htm - 2018 World Cup pages: https://yle.fi/aihe/tekstitv?P=601 - Ski slope situation: http://www.mtvtekstikanava.fi/new2008/621-01.htm and https://yle.fi/aihe/tekstitv?P=420 - Radiation measurements: https://yle.fi/aihe/tekstitv?P=867#2 - Record chart: https://yle.fi/aihe/tekstitv?P=804 - Recipes: https://yle.fi/aihe/tekstitv?P=811 - Bird situation: https://yle.fi/aihe/tekstitv?P=888 - Test page: https://yle.fi/aihe/tekstitv?P=580 (looks like blinking does not render) - TV listings: https://yle.fi/aihe/tekstitv?P=311 - International weather: https://yle.fi/aihe/tekstitv?P=408 - Train schedule and alerts: https://yle.fi/aihe/tekstitv?P=430 - International shortwave stations: https://yle.fi/aihe/tekstitv?P=591#3 - News in Latin: https://yle.fi/aihe/tekstitv?P=365 - TV listings: https://yle.fi/aihe/tekstitv?P=311

MTV used to have classifieds on their teletext pages that you input using your (landline) phone.

Death by HN, bandwidth limit exceeded (and link 404's)