Response to @conscript
It seems like the second link I provided also doesn't have a transcript available. I'll try to find a different documentary on the Beatles that has a transcript.
Alternatively, you can also try searching for documentaries on the Beatles that have closed captions or subtitles, as these can sometimes be used to generate a transcript.
If you have any specific preferences for the type of documentary you're looking for (e.g. focus on a particular album or era), let me know and I can try to find something that fits your interests.