A:Answer Hi Tee, Thank you for your inquiry. Unfortunately, the XFINITY stream app is currently not available on the X800H and X900H TV. Many of the existing apps from the Google Play™ store can be downloaded to Android™ TV. There are over 5000+ apps already available with a consistent flow of new apps being released for the Android TV platform.
There are two ways to determine what apps are available for an Android™ TV device.
1. If you already own an Android TV device, you can select the Google Play™ store app from the Apps menu. You can then search through all of the listed apps.
2. Using a computer, tablet, or smartphone, visit the Apps for Android TV website at https://play.google.com/store/apps/collection/promotion_3000e26_androidtv_apps_all for a list of the latest apps that are available for Android TV devices.
NOTE: Visiting the Apps for Android TV website, you can also see the Description and Reviews of the app before downloading.
Hope this helps!
-Sam