In 2004, Mr. Millan's series, DogWhisperer with Cesar Millan, premiered on the National Geographic Channel, becoming the network's top-rated show in its first season.
Mr. Brannaman's techniques stress kindness (how you treat a horse reflects how you treat your family and other people in your life) combined with firmness. (Like Cesar Millan, TV's "Dog Whisperer, " he teaches humans how to be an animal's parent, not its friend.) Ms. Meehl's own techniques include astute showmanship and, in one instance, a shocking illustration that some horses remain immune to humane ministrations.