If you put "Christian media degree" into Google, up come many, many courses that put into practice the words of article 15:

To provide for the needs just set forth, priests, religious and laymen who are equipped with the proper skills for adapting these media to the objectives of the apostolate should be appointed promptly.

Importantly, laymen ought to be afforded technical, doctrinal and moral training. For this purpose, the number of school faculties and institutes should be increased, where newsmen, writers for screen, radio and television and all other interested parties can obtain a sound training that is imbued with the Christian spirit, especially with respect to the social teaching of the Church.

Finally, care must be taken to prepare literary, film, radio, television and other critics, who will be equipped with the best skills in their own crafts and trained and encouraged to render judgments which always put moral issues in their proper light.

Jesus, please protect Christians who work in the media industry