Cost of Apple TV

A subscription to the Apple TV+ (note the Plus) streaming service costs USD 9.99/mo (+tax where applicable), and obviously something different for other countries or regions (e.g. GBP 8.99/mo, CA$ 12.99/mo). See: About Apple TV+ - Apple (US)

The annual price (paid in advance) is still 12 months for the price of 10 months. Users can set to annual after starting the subscription: How to switch to a different subscription plan - Apple Support

Apple TV+ costs $10 a month. There's no annual payment option.