Find out more about Madam Curie; balloon across North America; life is a big RV on ‘Disney’

Real Kids, Real Adventures (Discovery Channel, Sunday at 10:30 a.m.) highlights the heroic actions and adventures of children from across the United States and Canada. In the premiere, Alex Nicholos, 11, of Colorado Springs, is trapped alone in a runaway hot air balloon after the pilot is swept out by a high wind. With less than two hours of fuel left, the learning-disabled boy has to be “talked” through complicated instructions over the radio. For ages 6 to 12.

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In “Tourist Trap” (ABC, Sunday at 7 p.m.), Daniel Stern plays a bored banker who decides to put some fire in his life by taking his reluctant family on a motor-home vacation retracing the steps of a Civil War ancestor (Paul Giamatti). In this “Wonderful World of Disney,” Stern’s George Piper thinks the trip might bring his family closer together, but the family runs into on such ridiculous roadside attractions as the World’s Smallest Cave and the Barbed Wire Museum. For ages 7 and up.

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The British hit Teletubbies makes its U.S. premiere (KCET, weekdays at 11:30 a.m.). The Teletubbies are Tinky-Winky, Dipsy, Laa-Laa and Po, who sing, dance and play games, find adventure and chatter in baby talk. On the “Emily & Jester,” episode the group watch a young girl care for her pony. Magical animals also appear and the Teletubbies do a dance. For ages 2-4.

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A young French girl has a chance encounter with a brilliant scientist in Marie Curie: More than Meets the Eye (HBO, Wednesday at 7 p.m.). The story is set during the escalation of World War I. Young Martine Boudreau (Natalie Vansier), 11, sees Curie (Kate Trotter) carrying a strange box and is convinced she is a spy. Later she discovers that the box contains radiography equipment that may help her ailing father. For ages 11 to 16.