It was kind of shocking to see how many things they have their grubby hands in. I had to stop buying products I'd purchased for years. Now when I buy the products I replaced them with, I know I'm not putting money in their pockets so they can spend it against my interests.
I called a local television station when I'd heard the network was airing a program based on a true story, but learned it was more right wing propaganda than anything else. The program was aired right before an election. I told the station if they showed it, I would watch another local station for news, weather, etc., and would stop watching that network as well. The person I spoke to seemed concerned that I took the time to call.
They aired it, and I quit watching. Their news, weather, and sports used to be #1 in its market, it's now #3, and has been for years. I wonder how many others quit watching. Dropping to #3 had to have hurt their ad rates a lot. That seems to be the only thing they care about these days.
If your idea could catch on, I believe it could have an impact.