Hi there and welcome
Can you tell me please the make and model of your TV?
I need please Paul the model, you will see it on a label on the back of the TV
We will check if it is available for your TV.
Open up the Smart Hub, then go to the Lifestyles app and tell me if you see it there please.
ok, it is not possible for this TV, they stopped support for a lot of TV's some time ago (Microsoft who own Skype).
The only way would be via your computer and onto the TV.
You could connect your computer to a HDMI port on your TV as long as your TV has a HDMI port on it (else you can use a VGA to HDMI adapter).
Then Skype via the computer but display the video on the TV.