In Rochester, we use to get a lot of Browns games also. Still a good many Browns fans in ROC. I don't remember the AFL Bills being on a lot in Rochester, as the home games were blacked out, regardless of sellout, until 1973.
I started out a Raider fan, who were on TV it seemed like every Sunday, loved Daryl Lamonica, then moved to the Vikings after they lost to the hated Chiefs in Supe IV.
Went to the first game at then Rich Stadium on September 30, 1973 and have been a Bills fan since. Of course, that was the year every kid in WNY had a "Miami's Got the Oranges, But Buffalo's Got the Juice" t-shirt, so it was an easy transition.