The new Vizio 4K TV (its literal model name) costs $328 for a 55-inch model, has excellent built-in casting and every app you could possibly want, and does Dolby Vision high dynamic range.

If you're a Vizio smart TV user and SmartCast isn't available, or the home screen won't load. Here's some step-by-step instructions to get it working again.

If your Vizio TV is stuck on a black screen, but the audio still works, there's a chance it is due to an oft-overlooked feature and simple to fix.