Android 6.0 already includes support for pausing and time-shifting on TV devices, but Android N adds a more robust method of creating multiple recordings in supported apps. These can be scheduled in advance or triggered as you're watching. There aren't any apps yet to test this, but it sounds very much like DVR functionality.

Developers have to explicitly add support for recording in their apps. When the user starts a recording in the app or schedules one ahead of time, the resulting file is stored on the device. Saved recordings can be viewed by the user in the system TV app.

Google cautions developers to be aware of the limited storage in many Android TV devices. In fact, this feature might be rather useless on devices without some sort of expandable storage. It be more suitable for some future Android TV device designed around more DVR-like features.