It was the same for the DVR+ reviews. I would hazard a guess—that has a good chance of being correct—that the bulk of the reviews are posted by individuals that are not as knowledgable or critical as the average AVS member. There also seems to be at least one DVR+ review that may be a Russian IRA agent:Only one 3* review...all the others are 4* & 5*...seems a little incredulous to me.
Channelmaster DVR 16gb September 18, 2017
Reviewer: Anonymous Person from San Diego, CA
Before I cut cable, I installed antenna and hook up TV. I received pretty good channels I tested channels and got some languages like Spanish, Vietnam, Russia and some other language I do not know because of mixed pot languages in San Diego. Then I hook up channelmaster plus bought a 1TB hardrive. Great most better clear and recording is great. I have been tested for two weeks. Now I am ready to cut cable tomorrow for good. I m tired of cable control and want freedom from cable.