Question Samsung help

Jan 2, 2021
Samsung help please

Hey there looking for some help or advice on my Samsung. I have a 55in Samsung maybe 5-6 years old. Just recently when you turn it on the smart TV logo appears and goes away and I’m stuck with just a black screen. I don’t get any sound or when I hit menu button nothing shows up. Even weirder is I can not power it off. It just stays on when I hit the power button. Only way to turn it off is to unplug. Any advice would be greatly appreciated. Thank you.