I am just like you. The programming became complete trash about 6-7 years ago and I stopped watching it. I only watch if it's my only option of seeing the Bills. Won't even tune into the other MNF games.
Tiger Woods has done it several times in his career. He re-built his swing with Butch Harmon in 1997 after winning the Masters. He did it again in 2004 with Hank Haney. He had immense amount of success with both swing changes.