Often employers filter out applicants using credentials instead of considering actual skills. I had a First Class Radiotelephone Operator License, required to operate some radio transmitters. Most TV stations required it to run lights, sound or a camera. The license test, for example, required identification of a Colpitts oscillator, something I never had to do in my decade as a licensee. A better test would have taught the tv skills: the difference between pan and dolly, spot/fill/back lights, or advanced lavaliere microphone placement. The radio section: how to fill time between hourly readings. I am not sure what radio and TV stations use now to effortlessly eliminate applicants, but I am sure there is something. Maybe a credential.