If you meant transcribing dialogue from a TV show is violating copyright, I'm not so sure, it's relatively common to quote dialogue for varied purposes, ex. TV critics
Definitely understand if you're saying the whole dialogue for a TV show is copyrighted, but I'm curious about the opensubtitles part, used to work in that area.
n.b. not being argumentative, please don't read it that way, I apologize if it comes off that way:
Not every derived work is a copyright violation, that's why subs and dubs don't get kicked around, you can quote dialogue in an article, etc.[^1]
Answering if it applies to AI is playing out in court currently with ex. NYT v. OpenAI[^2] and Sarah Silverman et al v. OpenAI[^3] and v. Meta.[^4]
[^1] "Copyright doesn't protect against all use of the work or use of derivative works. There are a few exceptions that fall under what's commonly known as the fair use doctrine:" (https://www.legalzoom.com/articles/what-are-derivative-works...)
[^2] https://www.nytimes.com/2023/12/27/business/media/new-york-t...
[^3] https://www.theverge.com/2024/2/13/24072131/sarah-silverman-...
[^4] https://www.hollywoodreporter.com/business/business-news/sar...