Apple TV 4k

Make sure your payment info (credit card) associated with your Apple ID is valid,

check here: https://appleid.apple.com

Then follow instructions here on how to download apps directly: Purchase and download apps on Apple TV - Apple Support

Note: make sure your TV is connected to the Internet (Wi-Fi or Ethernet)

Hi there,

Apple has instructions on how to download apps from your Apple TV from this link here: https://support.apple.com/en-us/HT204266#browse