Over all, the (NBC)’s ratings have fallen so far that no episode of any show on NBC in February came within one million viewers of a show on PBS: “Downton Abbey.” And forget approaching the numbers of a cable hit like AMC’s “The Walking Dead.
Nothing NBC has put on in prime time has matched even the appeal of the “Talking Dead,” a show with people simply discussing “The Walking Dead.” That show managed a 2.2 rating in the 18-49 audience. NBC’s best prime-time number for the month has been a 2.1, achieved by episodes of “The Biggest Loser” and “The Office,” a comedy that is about to go off the air.