Here's a really good quality early grab. It was taken from a tape with Space Shuttle launch coverage on it; this is from STS-2, the second Shuttle launch.
This would appear to be a first generation copy. Earlier in the tape there is coverage of STS-1, from April that year, but it was terrible quality, in terms of teletext; I think it was a dub.
This is the best P100 I could find:
Bear in mind that this is P100 too, which has the most instances of the page to integrate. I wonder if it's possible to better integrate each character?
Anyway, back to ITV, and telesoftware made an earlier appearance than you would think. The BBC offered a similar service. The BBC Micro wasn't around at this point, so what was the target platform here?
Here's some source:
Schools programmes, complete with opt-outs:
Yes indeed: this is teletext 'Spot the Ball':
News headlines for that day:
The news stories themselves kept this format up until Oracle closed in 1992:
Now this I must try and decode at some point!
On to some 80s lulz:
The below is now covered in Kerrang! magazine:
Come on, STV, pull your fingers out!
...it wouldn't be teletext without a clock cracker:
...and finally, sunglasses at the ready for this monstrosity: