For these films, advisories were taken off air leaving station head perplexed (6)
I believe the answer is:
videos
'for these films' is the definition.
(I've seen this before)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for videos that I've seen before include "Film copies for home viewing, rent or buy" , "movies like these" , "films" , "Records" , "Moving images on tape" .)