Yes, you can stream Passport videos with your Apple TV once you've activated Passport. Learn how to activate Passport
To watch Passport videos on your Apple TV, please make sure the account you used to activate Passport is the same as the account you used to activate the PBS app on the Apple TV. To see if you've used the same account, try watching any Passport video on Apple TV.
If you encounter an error that says you are unable to watch the video because you need to activate Passport, it is likely that the account you used to activate the PBS app on Apple TV is different from the account you used to activate Passport.