Experts disagree on whether dogs actually see and recognize what is happening on TV. Some say dogs are just reacting to motion or to the sounds. Others say that what they do see is just a series of dark blobs because their eyes aren’t made to distinguish fine detail and can only see some variations in color. And some do acknowledge that dogs vary.
I’m an empiricist and what I’ve observed with Melanie and Molly is that some dogs see TV and some dogs don’t. Melanie, since she was a puppy, would bark at dogs, horses, and other animals but not humans on the screen. The first time this happened was when they showed the riderless horse during President Reagan's funeral. As she got older she became more refined and now only growls or barks when she sees a dog, or a part of a dog. Sometimes even just a quick flash of dog that we don’t even notice can set her off. This drives Molly crazy as she immediately reacts to Mel’s alert and starts looking around and sniffing for the interloper, looking everywhere but at the television. So far Molly hasn’t responded to anything on TV.
Catching the scene on the DVR and replaying it can be quite entertaining as Melanie gives an obligatory growl every time the dog scrolls by but otherwise doesn’t budge from her spot on the couch. Only if the dog appears aggressive or running toward the camera does she leap up and get into a protective mode. The longest she ever watched a video was once when we played an old movie of Richard at Hood Canal with Grandma and Grandpa. She stared at Richard, barked at the crows, and followed the dachshunds with her eyes as they moved across the screen. You might have met Richard at the store this summer. He's a lot taller now then he was back when this picture was taken!
Why some dogs see and some don’t is a mystery. But might have something to do with both vision and interpretation. Television is actually a series of images flashed on the screen at a rapid rate. For humans, once it gets over about 50 to 60 images per second (50 Hz to 60 Hz) it blends and the flicker goes away. Dogs, on the other hand can see flicker up to 70 Hz, which may cause enough of a distraction for many to miss what’s in the scene. Or maybe some dogs just see slower.
So tell me, does your dog watch TV?