03-22-2020 10:21 AM - edited 03-22-2020 10:23 AM
Welcome to our community. I'd be happy to see if I can help troubleshoot this for you.
First, you'll want to try unplugging the television for about the minutes, then plugging it back in, and trying again. That may allow you to reset it.
If that does not work, please get back to me with the model number from the television and I'll see if I can provide any additional troubleshooting.