https://wccftech.com/tvos-14-6-released-for-apple-tv-with-podcast-subscription-support/

Apple TV HD and Apple TV 4K users can now download the latest tvOS 14.6 update with support for Podcast subscriptions.

tvOS has been updated to version 14.6, and apart from the usual Podcast subscription support, you can expect to come across some bug fixes as well. It is therefore, a good idea to download and install the latest update right away.