What do I push if there is no watch now option on my Apple TV app

What is your version iOS or iPadOS for that iPad?

Update your iPhone, iPad, or iPod touch - Apple Support

Devices you can use with the Apple TV app and Apple TV+ - Apple Support

• iPhone, iPad, and iPod touch: Updated to the latest version of iOS or iPadOS

Hello,

You can watch Apple TV+ within iPad’s TV application. If you do not see the TV application then you can download it from the App Store.