Searching for other Swedish SVT Utbildningsradions series on YouTube, I finally found a clip, showing all 3 teens. Another one by Eskil Garpebring.
Main entry
https://schulfernsehenenglischhistory.blogspot.com/2021/07/barn-theatre.html
This is a database of historical movies and TV series for English learning (ELT) used at schools. First mainly German and of the 80s. This is a fan blog and not commercial but for scientific purposes.
Searching for other Swedish SVT Utbildningsradions series on YouTube, I finally found a clip, showing all 3 teens. Another one by Eskil Garpebring.
Main entry
https://schulfernsehenenglischhistory.blogspot.com/2021/07/barn-theatre.html
I haven't watched it completely, yet. And I haven't found more episodes.
I also found some few more other series aired in Sweden (SVT), coming soon.
https://schulfernsehenenglischhistory.blogspot.com/2021/07/double-trouble.html
Searching for books and videos of Double Trouble (assumed to be of 1984) hard to find, as there'a movie and other series of the same title, I found episode 1 by searching for its title: Heads or Tails. The series is from 1982 as shown on the ending credits.
Very interesting. The boy looks different than on my earlier pics. Hair a bit darker.
At the end there's also the cover of the book shown (I had pics, but just in b&w).
Penny played by Nicola Cowper
Bob Timothy Ward
Co-script, directed and produced by Eskil Garpebring. A similar, 1974 series from him with a boy and girl is Switch On (b&w). And Reporters. He also did Come and See Us.
https://www.youtube.com/watch?v=WkCrz4hedc4
Main entry here
https://schulfernsehenenglischhistory.blogspot.com/2021/07/double-trouble.html
Another reader by Stephen Speight ("Moving to Marlborough"). I don't own it and I haven't found any pics online for many ...