Watch Clifford the Big Red Dog- Clifford's Best Friends (2001) : Full Movie Online Free In the animated PBS children's television series Clifford the Big Red Dog, the huggable, lovable, giant red canine Clifford provides young viewers with some valuable lessons on self-acceptance, friends, and community. The series stars the big-hearted pooch, voiced by John Ritter; his eight-year-old owner Emily Elizabeth; and Clifford's canine pals, T-Bone and Cleo. The episode "My Best Friend" features one of Clifford's Ten Big Ideas which children can apply to their own lives. In this program, the focus idea is the importance of believing in yourself. Emily hunts high and low for an extraordinary item to share for Show-and-Tell. Her search finally ends when she realizes that often, our most valuable treasures are right in front of our eyes.