How can I delete videos off iTunes Library on my computer but keep them on my iPhone? My computer is running low on space, so after I sync my films to my iPhone, I want to delete them from my computer.

How can I do this, without having iTunes sync this deletion back to my iPhone the next time I connect my iPhone?
Under your iPhone’s Summary page in iTunes, check Manually manage videos (if you don’t use iTunes Match or MUSIC this option will read Manually manage music and videos).



This will let you decide what gets synced and what doesn’t.