I found the app at
http://www.mydroid.info/3398/xfinity-mobile-v2-0-2/
I used the second link
http://www.mediafire.com/?mmnm754ka44b3rx
This version has a lot to offer including scheduling a DVR recording. It doesn't appear to offer the remote control option where one can change the channel. THe onDemand screen has some issues. I am mostly interested in the TV guide.
I was planning on rooting the device. However despite having much experience modifying old windows phones and other devices I am trying to avoid messing around with the new toy. I have already side loaded xfinity and zinio. There are other apps I am interested in but I also expect Amazon to move fast pushing these others to the tablet. I will either wait or continue side loading. If successful then I can avoid rooting the device.