Hi there! I understand that the GB News app isn’t opening on your smart TV. Could you tell me a bit more about your TV model or brand? Also, have you noticed any error messages, or does the app just fail to launch at all?

In the meantime, let's try some steps that usually help with app launch problems on smart TVs:

1. Restart the App: Close the GB News app completely, if possible, then try opening it again. Sometimes this clears temporary glitches.

2. Restart the TV: Turn off the TV, unplug it from power for about 30 seconds, then plug it back in and power it on. This soft reset can resolve minor software issues.

3. Update the App: Check if there is an update available for the GB News app in your TV’s app store. An outdated app might fail to open.

4. Clear the App Cache/Data: On some smart TVs, you can clear cache or data for individual apps via settings. This removes temporary files that may cause errors.

5. Reinstall the App: Uninstall the GB News app, then reinstall it fresh. This can eliminate corrupted files.

6. Update TV Firmware: Check if your smart TV has a system update available and install it. Compatibility issues sometimes arise from outdated TV software.

If you could let me know which of these steps you’ve already tried or any specific behavior you’re seeing, I can tailor further advice. Also, knowing your TV brand (Samsung, LG, Sony, etc.) and model would really help.

Looking forward to your reply!