Several years ago there was a program on PBS, a many part series about birds of the world, narrated by David Attenboro (or however his name is spelled!) Oliver would come running as soon as it began and plant himself in front of the TV for the whole hour. I finally pulled a chair over to the TV so he could get right up close, and he would pat the screen every now and then. That was the only program he ever showed an interest in, and it escaped his sister Smokey completely. She likes to watch the real thing; the bird feeder outside the kitchen window.