Hi Kenneth. Welcome to justanswer.
Are you trying to connect wired headphones or the wireless ones?
Do you see any Audio Out port?
For bluetooth device, press MENU- Sound- Additional Settings- Bluetooth Audio
Try inserting the jack in the Audio out port. Check it will not have a flap and a simple 3.5mm jack
Check this image
Have you checked the attached image. Do not put in Digital Audio Out
Click this blue link to see the image
The Audio Out port looks like this
Check this image. Does your TV's back panel looks like this
I said don't use Digital Audio Out. Use Audio Out to connect the headphones
Did you connect the headphone in AUDIO OUT port?
Can you click the picture of the back panel and show it to me?
Check if the back panel looks like this
Can you click a picture and attach it here so that I can have a look at it?
That's good. For wired headphones you need to locate the headphones port on the back of your TV. If it is not present then you cannot connect the headphones to any other socket. The headphone port will either have a symbol of headphones or it would have Audio out written beside it.
Please rate the chat positively by clicking the 5 stars present on the upper panel so that I can get credited for my services.