There are quite a few! On Android, you can grab the TextTV app (may also be on iOS) and get feeds that are still operating. I used it while in Iceland (RÚV) to correlate some weather data, and Germany seems to have quite a few feeds.
I originally found it when I was trying to start my own micro Teletext service in the US for the fun of it, but the project got set aside to make way for more pressing things (aka life). I really should get back to it...
Very good read.