NPR does this sort of thing all the time. Their reputation model is built around direct public sponsorship, so they can't just run regular ads. But they also

NPR does this sort of thing all the time. Their reputation model is built around direct public sponsorship, so they can't just run regular ads. But they also need the money, and ads are a seductive source of revenue. They are subtle enough about it that I still occasionally hear people mention that NPR or PBS doesn't have ads. Sometimes I am able to obnoxiously interject and explain what natives and submarines are, but most of the time I have to leave them to their ignorance. I am particularly annoyed whenever they are pushing music or books, because they often have this "tote bag" and "kaffeeklatsch" demographic target that doesn't always align with me. So the "cultural reporting" ads fall flat.