Hi! I see that with Tubi Live TV on your Windows 10 device, you're hearing sound but not seeing any video. Let’s work through some fixes together.

First, just to understand better:
- Are you using the Tubi app downloaded on your Windows 10 or watching through a browser?
- Have you noticed if this happens with all Live TV channels or just certain ones?
- Have you tried restarting the app or the device already?

Meanwhile, here are some useful steps you can try:

1. Restart the Tubi app: Close the app completely (make sure it's not running in the background), then launch it again.

2. Restart your PC: Simple restarts can clear temporary glitches affecting video playback.

3. Check for app updates: If you’re using the Tubi app from the Microsoft Store, open the Store, and check if there’s an update available for Tubi.

4. Clear cache and data: For Windows apps, you can reset the app by going to Settings > Apps > Tubi > Advanced options > Reset. This clears corrupt data that might cause video issues without affecting your account.

5. Try a different browser: If you use a browser, switch to another (e.g., from Edge to Chrome) and see if the video works there.

6. Graphics driver update: Outdated video drivers can cause video playback problems. Open Device Manager > Display adapters > Right-click your graphics card > Update driver.

7. Disable hardware acceleration in the browser: If you watch via browser, try disabling hardware acceleration in the browser settings as it sometimes causes black video. For Chrome: Settings > Advanced > System > toggle off “Use hardware acceleration when available.”

8. Check your internet connection: Though audio works, slow or intermittent connections sometimes cause video issues. Try streaming something else or running a speed test.

If none of these work, please let me know what you tried and if any error messages appear. We can look deeper or try reinstallation or contact Tubi support if needed.

Are you okay trying these steps now?