Edit: quick research is looking like I’m entirely misremembering and entirely wrong. Quoting my original comment for posterity

If I’m remembering my history correctly, they actually had a similar problem in the early 20th century with movie theaters and movie studios. Studios would strong arm theatres into restrictive contracts for what they could screen, and when it looked too much like a federal law would drop restricting their behavior the industry instead opted to self-regulate and formed a private regulatory body