thanks for the free HBO this week - too bad all I got to see was a black screen with the following message (even though I don't use Private Mode):
This video cannot be played.
This content on Xfinity TV is not available for viewing with Firefox's "Private" mode. To play this video using Firefox, please view this page without "Private" mode enabled.
The wonderful Comcast service that I've come to expect.
Looks like I'll be calling DirecTV back tomorrow to reinstate my installation date.