Of course animals can see in mirrors and the tv, not sure they can work it all out as it moves from frame to frame, and is possibly a bit quick for them to focus into properly, but both my dogs and the cat sit and watch Animal Hospital, when Tiggy lets them of course, cos he is usually up there in the front pawing at the screen being his usual pain..lol
When Chaz was a pup I put a mirror down on the floor, thinking he'd like another dog to talk to like a budgie in a cage, he shot off howling, then crept back to it and sniffed behind it, couldn't fatham out where the dog kept going off to...lol now they know in their own way and take no notice..
cheers....Cher