Our old DTA died and Comcast issued us a Pacer PXD01ANI box as a replacement with a new and much fancier remote. Despite several tech support calls with people I could barely understand, and one home visit by a seemingly knowledgeable tech, we still have a huge problem.
The box intermittently (usually once per day) fails to deliver any signal to the TV. The only remedy I have found is to power the box off/on and then it (rather quickly) starts sending signals. The tech said it was usually caused by incorrect pairing of the remote and box, but he paired it and it replicated the same problem the next day. Surely this is either a defective box or the solution is not known to anyone we have dealt with.