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 pooch pals, T-Bone and Cleo. The program Clifford Tries His Best contains a collection of four episodes. The theme is sharing in Clifford the Big Red Dog: Dog Park. The pooches are banned from the park, but when their presence is missed, they are invited back. The episode Clifford the Big Red Dog: The Big Sleepover finds Clifford a lonesome pooch when Emily Elizabeth must leave him behind to attend a wedding. Clifford discovers Emily Elizabeth's unconditional love in Clifford the Big Red Dog: And Birdy Makes Three. After finding a baby bird, the girl devotes her time to nurturing it until it can return home, while Clifford confronts his feelings of jealousy. The lesson is respect for others in Clifford the Big Red Dog: Clifford's Doggy Reunion. Cousin Laura and her dog, Rex, pay the family a visit and all must learn to accept change. This series, geared for youngsters age three and older, is based upon the book series written and illustrated by Norman Bridwell.