Any TV experts ??

I would buy second hand from charity shop ,repair will be expensive .

LG or Samsung are best

Could you get the model number for it? Should be on the back of the TV

Holy smokes. Look up the price of smart TVs in your area. They’re not very much in mine. I haven’t bought them be in five years. They’re less now.

I would consider taking it to a TV repair shop if you do not want to replace it. I hope it is a simple fix.

When my TV went out, I went to the manufacturer home page and chatted with customer service who walked me through a reset and fixed it just fine. Mine is LG though

If it runs off WiFi unplug the modem for a minute then back in.

This would happen to the YouTube app in my tv, there would be sound but a black screen. What I had to do was uninstall the app on the tv and reinstall it and the fixed that issue. It only happened with you tube. Are you watching via an app and having the issue?

Once the backlight goes out, expensive to fix

Double check video inputs....while the audio is playing shine a bright light at the screen to see if there are moving images - if so it's a bad backlight....time for new one...if not double check the image source...

Try different inputs or even a different source if you have one, like a DVD or Bluray player. Also check and reseat any connections.

You could also try the Flashlight Trick. If the screen is completely black, turn the TV on and shine a flashlight at an angle close to the screen. If you can faintly see shadows or menus, the LED backlight inside your TV has likely failed.

I never heard of doing this but it can't hurt to try.

Sadly it is cheaper and faster to replace it than to fix it. ☹