this was posted in a now infamous and closed thread - off topic from the thread but copterdoc said this:
I tried training my first dog with a book, but he got frustrated because he couldn't turn the pages.
I put in a Lardy video and that was better, but since dogs aren't able to focus on a two dimensional image, he couldn't pick up on a lot of the material.
i am home laid up with the flu, and not 2 minutes after i read this my dog sat straight up and started growling at a wolf on tv - "dancing with wolves" is on CMT. growling! he growled again at a buffalo! this is just a 7 mo old pup that hasn't seen anything other than other labs his whole life.
back at about 4 months he sat up and growled at grizzly bears on a DiscoveryHD show, and abruptly quit growling but perked more interestingly at a close up shot of snowy owl flying. clearly saw the difference between a potential predator and prey.
either i have one heck of a smart dog or one heck of a great HD tv!