How can you watch multiple channels at once using the split-screen feature on YouTube TV?

To watch multiple channels at once using the split-screen feature on YouTube TV, first, ensure you have a compatible device and an active YouTube TV subscription. Open the YouTube TV app on your device and start playing a live channel. Then, look for the option to enable split-screen within the app's interface; this option might be indicated by a multi-window icon or can be found within the viewing settings. Select another program or channel to add to your screen from the guide. The screen will then divide into two sections, allowing you to watch both channels simultaneously. Some devices may even allow you to resize or customize the split-screen view to prioritize one feed over the other. Remember, this feature might not be available on all devices or in all regions, so it's essential to refer to the latest updates and support guidelines from YouTube TV for the most accurate information and instructions.