Channels and Channels DVR apps on AppleTV

So, in the AppleTV App Store I see it a Channels and Chanel DVR app. I have them both on my AppleTV. I can not see a difference between them both. Is it just a fluke or is there a reason for both of these apps?

The Channels DVR requires access to the Channels DVR to work, which is why it’s free. The other app can be used as a stand-alone live tv app, and is a paid app on ATV.

Ah, That explains it. I purchased the app long before I could have gotten it for free with the DVR subscription.