Hello, Understanding! Your Fire Stick Lite is compatible with high-definition TVs with HDMI capable of 1080p or 720p at 60/50 Hz. As far as it not playing some Netflix shows, I'm not sure what that is about. The Fire TV Stick Lite is not compatible with 4k, so if you are watching 4k shows on Netflix, you would just see them in HD instead of in 4k. I hope that helps! Have a great day!