For some of these jobs, it's possible to make money without any formal qualification. I started making money from freelance journalism when I was 14. I didn't get any formal qualifications in this field until nearly 30 years later (and those qualifications don't have any effect on whether or not I can sell a feature article!). I've also done some radio presentation and features work - also without any formal qualifications.
To answer your question more directly, however, here are the appropriate links from Learn Direct:
Newspapers: For print journalism, see here:
http://www.learndirect-advice.co.uk/helpwithyourcareer/j obprofiles/profiles/profile124/
Magazines: See the above link for journalism or, for more general careers in writing, see here:
http://www.learndirect-advice.co.uk/helpwithyourcareer/j obprofiles/profiles/profile1253/
Film/TV/Radio: There are so many different career opportunities within these fields that it would be pointless for me to list them all when I can just suggest that you browse through the links here:
http://www.learndirect-advice.co.uk/helpwithyourcareer/j obprofiles/category22/
Hoping this helps,
Chris