It is said that a dog is man's best friend, and now to repay their reliability and friendship, cable developers has launched the first TV channel in southern California, "DogTV" specifically to entertain stay-at-home dogs when their owners are away from home. 　　According to the developers, the 24-hour programming is good company for its four-legged viewers."There are numerous dogs, 80 million in the United States, many of whom are spending long hours alone, up to and even more than eight hours a day. And in that vacuum, devoid of human company, they have pretty much nothing to do," said Dr. Nicholas Dodman, Dog TV's chief scientist. 　　He added that some dogs are desperate for companionship while their owner is away and Dog TV can reduce their anxiety, as well as relax them. 　　Dodman: "And there are about 15 percent of the United States 80 million dogs, 15 percent of them show clinical separation anxiety. The cardinal signs being vocalization and destructive behavior." 　　DogTVs content is specifically designed for dogs, with even the sound, colors and camera angles adjusted to make the shows more appealing to canines. 　　Dodman: "We know that dogs are kind of red-green color blind. So the colors have been adjusted and augmented to be more appealing to dogs. Auditorily, we know that especially for the relaxation phase of Dog TV that they appreciate more melodic sounds and music, preferably single instruments played in slightly slower rhythms, perhaps trained to biological rhythms like respiration," 　　The dogs' favorite TV stars, not surprisingly, turn out to be other dogs, as dogs like looking at other dogs, people and motions, and therefore contents like balls being kicked around are put on air. 　　The cable developer is now planning to broadcast DogTV nationwide, and maybe bringing the network to dog-loving countries, to entertain more dogs around the world.