“Scientifically Accurate Barney” is much less cloying, still quite educational

The tireless destroyers of childhood whimsy at Fox ADHD, who already did their best to ruin Chip ‘n Dale Rescue Rangers with scientific accuracy, have now turned their gimlet eyes toward Barney & Friends. That long-running and much-mocked PBS children’s series, which stubbornly persists in reruns several years after…