Can I pay for philo tv with Apple itunes

Hello 66wilby,

By "iTunes" I am understanding you to mean Apple Account balance. This document outlines what you can buy with your Apple ID [Apple Account] balance --> What you can buy with your Apple Gift Card or Apple Account balance - Apple Support

If philo tv is a subscription you can make through Apple then very likely you can pay for it with your account balance. However, since this is a subscription, Apple may require the presence of another payment method such as a credit or debit card on your account. Your account balance would be usedfirst but the other payment method has to be present and valid.