A bit unrelated, but if you want a overview of sponsorships in different media platforms across different countries (mostly Britain and US though), I suggest watching Tom Scott's excellent video: https://youtu.be/L-x8DYTOv7w.
(Note that the video is ~30 minutes long. It's unfortunately that complicated, even when only talking rules mainly in two countries.)
(Note that the video is ~30 minutes long. It's unfortunately that complicated, even when only talking rules mainly in two countries.)