^More dogs are watching TV than ever before! Their brains see
  movement FASTER than ours, so old TV's just looked like
  flickering to most dogs.

  But, "high-resolution digital screens are refreshed at a much
  higher rate so even for dogs there is less flicker, and we are
  getting more reports of pet dogs who are very interested when
  various nature shows containing images of animals moving.". Now
  you know.
  ^