problem with Apple TV 4th generation and Amazon Fire on same Tv
I tried to connect my Apple TV 4th generation to my Sony Bravia TV. I put it on HDMI port #1 which an HDIM/ARC port. My Amazon Fire TV was connected to HDMI port #2. When changed the input to HDMI # 1 and I addressed the Apple TV it overrode the Amazon TV and came on on both ports at the same time.
I wanted both devices on the same TV because they have different apps and I also wanted to mirror the content on my iPad.