Also available on YouTube and torrents.
If they just put up everything they already made they could charge more than Netflix IMO. Instead, god knows why, it's a limited selection that too from which some missing episodes due to the usual 'woke' rewriting of history & present (racist or whatever-ist people exist right, so what's the problem with a show having such a character? Doesn't mean it's right, nor that the show itself is that-ist).
You're in for a treat, especially if you can enjoy the 70s stylings of James Burke. I particularly enjoy his dry wit which would probably be toned down quite a bit for modern serious productions.
> the usual 'woke' rewriting of history & present
It's not so much rewriting (unless you're a publisher looking for free publicity), but attempting to not broadcast very offensive material that was considered normal back in the day (much as slavery used to be considered normal). Personally, I was quite a fan of "Till Death Us Do Part" featuring Alf Garnett as a racist bigot, but then I can appreciate irony and that the programmes were making the point that he was a character to be lampooned and pitied. However, there's too many people that would accept it at face value and use it to justify their vile racism, so I can understand that it's not suitable for modern consumption.
Britbox doesn't publish their standalone app library but googling the two names together doesn't suggest they have it either.
I suspect for much of the older stuff it's licensing issues making it not worth the time to verify, in their view. Just because it's BBC production doesn't mean there isn't 3rd party stuff that has to be checked.
That and content, they probably don't want to air everything they did in the 60s/70s for example, for fear of being buried in complaints...
It's all fixable, but may not be considered worth the effort. Sometimes not worth the effort to audit even.
FWIW Time Life were involved in a number of distribution arrangements with the BBC, there's some details here [2].
[1] https://www.imdb.com/title/tt0078588/companycredits/
[2] https://en.wikipedia.org/wiki/Time_Life_Television#Televisio...