Apple Tv

• Apple sends invoices for each transaction, so you wouldn’t have to guess what it is for. Additionally, you can look up past transactions in the purchase history. See your purchase history for the App Store or iTunes Store - Apple Support.
• Investigate charges that you see on your statement. If you see "apple.com/bill" or an unfamiliar charge on your statement - Apple Support.
• All subscriptions and their due dates are listed in the subscriptions overview. See or cancel your subscriptions - Apple Support.
• Learn why you might see a pending charge from Apple on your payment card. About payment card authorization holds from the App Store or iTunes Store - Apple Support.
• Some purchases might be grouped together onto a single charge. How App Store and iTunes Store purchases are billed - Apple Support.

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• If you accepted the 7 day trial, then that is what you would get, and automatic charges for subscription fees would start after that week.
• If you accepted the year offer, then the next billing date would be in a year.