Steve is frustrated with his Vizio 4K smart TV, which has a Netflix app, but it only supports 1080p and not 4K. Leo says that's because the TV is using an older version of the Netflix app. Leo recommends getting a Roku or Apple TV and then use the 4K version of the app, and it will stream in 4K. This is why Leo prefers so-called "dumb" TVs which don't have smart apps. He uses a Roku, which gets updated far more often and supports 4K apps.