How to get Apple TV+ onto my television?

I have the Apple TV box.

For Apple TV+, the Apple TV box needs to be of the 3rd generation or later (model A1427 or later). Which model do you have?

Identify your Apple TV model - Apple Support

Find your Apple TV model number - Apple Support

Now trying to access Apple TV+ programming on my television. I prefer to watch on a TV rather than a computer.

That is what the Apple TV box is for. Connect it by HDMI, set your TV to take input from the corresponding HDMI port, launch the Apple TV app, and select Apple TV+ content there.

It is also possible to use the Apple TV app on select modern smart TVs. It is also possible to use select third party HDMI streaming devices connected to a TV, to use the Apple TV app that way.

How to watch Apple TV+ and more - Apple Support

Get the Apple TV app or Apple TV+ app on your smart TV or streaming device - Apple Support

Watch on these compatible smart TVs and streaming devices - Apple Support