Similar to LingQ there is Migaku which can do this for YouTube and other sites. It definitely has significantly aided my learning and made it a zero friction and even fun experience to learn another language.
"To recognize 99% of all the words in Netflix's subtitles, you'd need to know 37,247 words"
Interesting approach! I really don't know how they managed to gather this list, but it's an interesting and clever method.
*other than those blocked for privacy reasons
I can contact you when it's added, if you like - perhaps you could email alex (at) nuenki.app?