Hi Natasha,
I would glad to help!

In order to access Grokker videos you must have an active subscription. We have a few different plan options.
•Monthly $14.99
•Annual $119.88
•Comcast $6.99

For our annual and monthly plans you are able to access Grokker to its full potential. You will have access to Grokker's entire video library, special features such as customized video recommendations, calendaring, featured programs and series, etc. You are able to access your Grokker account on multiple platforms such as your mobile device through our iOS app or web browser, computer, and TV (via computer and HDMI, Apple TV, Roku, Chromecast)

The Xfinity experience is completely separate from the Grokker. It features 500 of our videos (our library has 1,500+ videos) and doesn't have special features like calendaring and reminders.

Hope this helps! If you need more information or further assistance please email us at support@grokker.com .

Sincerely,
Loren