Couch Potato is a PVR app, which lets you scan USENET and torrent sites for content that you want. The app automatically searches for the information that is relevant to the video you need and when the app finds the video, it will automatically download it.
With CouchPotato you can download content automatically, as soon as it is available. Just populate the data for the title you want and CouchPotato will add it to your "want to watch" list. The app searches daily through multiple NZBs & Torrents sites, looking for the best possible match and if it is available, CouchPotato will then download it.
Couch Potato also lets you set up parameters for metadata that allow you to tag your files correctly so that your collection is organized properly. You also have the ability to send notifications when the video you're looking for becomes available. When the app finds the content you want, it can download it via SABnzbd or via a torrent protocol. Couch Potato can also be configured to work with some USENET providers.
Overall, the interface is streamlined and simple to navigate. The app also has flexible search parameters for you to tinker around with. Couch Potato is a good PVR tool for finding content via USENET and torrents and it is easy to use.