Barney’s back and the Ninja Turtles mutate; Allen Strange beams down; sure to visit Pappyland

Alice in Wonderland, Lewis Carroll’s classic story about a little girl who falls down a rabbit hole and meets some strange characters, comes alive in a 1951 film with Ed Wynn and Jerry Colonna (KTLA, Sunday at 1 p.m.). And yes, the Cheshire Cat, the Queen of Hearts and the Mad Hatter are all there. For ages 5 to 16.

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Pappyland begins its second season with Pappy Drewitt (Michael Cariglio) joined by human and puppet friends in his clubhouse where he uses art, humor and song to encourage children to be creative (Learning Channel, Monday at 7 a.m.). Children who sent their art to Pappy have a chance to see it on the air. For ages 3 to 11.

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The fourth season of Barney & Friends opens with new cast members and fresh puppet characters, Miss Etta Kette and Scooter McNutty (KCET, Monday at 9 a.m., repeats Tuesday at 7 a.m.). On the “First Day of School,” episode, Mr. Boyd lets Stephen, who is eager to go to class, visit a day early in the company of Barney and his friends. For ages 2 to 5.

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The Dragon Lord gives amulets to the dragon force that make them unstoppable against the turtles on Ninja Turtles: The Next Mutation (Fox, Saturday at 8 a.m.). The turtles learn to use the power of their minds to overcome the dragon traps. For ages 6 to 12.

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The Journey of Allen Strange (Nickelodeon, Saturday at 9 p.m.) is a new live-action comedy about the relationship between two kids--one human, one alien. Arjay Smith is Allen Strange, an alien who is accidentally separated from his planet Xela. On Earth, he transforms into a 14-year-old boy and becomes friends with a teenage girl named Robbie (Erin Dean) and with Josh (Shane Sweet), her little brother who loves science-fiction, gadgets and aliens. The two children learn Allen’s secret but agree not to tell. For ages 8 to 16.