As long as you are not giving away the font, Jim, you do not need anything more than using the fonts that you are licensed to use because you installed them from discs that you bought, or that came with various system fonts or were installed as part of a program you bought.
If you are going to hand copies of your fonts used to the audience that is watching your program — which I highly doubt is your intent or will be your usage — then you most likely have no need of a freeware or Creative Commons licensed font.
If I am misunderstanding your question, please give more clarification, but on the surface, you appear to have no need for anything more than using the fonts that are legitimately on your machine. (If it’s illegitimately on your machine then it’s another matter altogether.)
Best regards,
Ronald Lindeboom
CEO, Creative COW LLC
Publisher, Creative COW Magazine
Creativity is a process wherein the student and the teacher are located in the same individual.
“Incompetence has never prevented me from plunging in with enthusiasm.” – Woody Allen