To resolve the issue of CUE Live not working on your TV, follow these detailed troubleshooting steps:

First, ensure your internet connection is stable, as a poor connection can lead to playback problems. Check that your TV is connected to the internet and that other streaming services are functioning correctly. If there's an issue with your internet, restart your router and check your network settings - learn more.

Restart your TV and the application. Power cycling can fix many issues. Unplug your TV from the power source and leave it unplugged for about 10-15 minutes before plugging it back in - learn more.

Next, ensure that the CUE Live app is up to date. Check the App Store on your device for any available updates. If necessary, uninstall and reinstall the app. This step can clear out any corrupted data that might be causing issues - learn more.

If you’re using a device like Roku or Fire Stick, make sure the software is updated. Go to your device settings, navigate to the 'System' or 'Device' section, and perform a software update if available - learn more.

Check the event synchronization if you are trying to connect during a show. The CUE Live app requires users to have it open prior to the start of the event for proper synchronization - learn more.

If the issue persists after trying these steps, consider reaching out to CUE Live customer support for further assistance. Their technical team can provide more specialized help if standard troubleshooting doesn’t resolve the problem.