how do i change payment method

The instructions here do not say you can do it on an Apple TV:

Change or remove your payment information from your iTunes Store account (Apple ID) - hhttps://support.apple.com/HT201266

Change your payment method

iPhone, iPad, or iPod touch

Mac or PC

Android device

Need to change payment option...my bank just changed debit card from visa to master card

Okay, read the link I posted 3 weeks ago.