This already happens with Radio and TV. "Broadcasting in the Public Interest". Never heard that phrase before?

At least since the Clinton Administration they have been giving credit for "Broadcasting in the Public Interest" with embedded messages in sitcoms rather than PSAs (Public Service Announcements) taking up valuable commercial time.

Drug War, Sex Education, Kids having Kids etc etc. These approved scripts from the administrations give them "Broadcasting in the Public Interest" credits for when they seek approval for their license.

FYI