Just signed up for xfinity service. Our cable box/DVR (model XG1-P PX013ANM) has a constant fan noise that is loud enough to be heard over the TV. I read a post on this forum from someone with the same problem, and the response referred to this model as "the oldest one" as of June 2019. That person received a newer model as a replacement. I would like to see about gettting a replacement as well.