Sure, as far as the things you refer to are plural you can use "they" to refer to them.I don't watch too much TV as before but one of my favorite TV channels is TCM. Plenty of good classic movies and shows, and the best of all... they're all english spoken with subs!
Sorry the offtopic but I've always had a question... Can you say "they" when you're talking about not human or intangible things like I used it in this case with the movies?
I'd appreciate your answers.