Neil Patrick Harris goes to the dogs for PBS film

LOS ANGELES, CA Harris recorded the narration this week for "Through a Dog's Eyes," which is set to air next month.

The film details how dogs learn to serve people with disabilities and how animals and humans are paired. An Iraqi veteran who became a quadriplegic after a car accident and a 6-year-old with cerebral palsy are among those featured in the film.

The "How I Met Your Mother" star says he was impressed by the strong emotional connection between the service animals and those who rely on them. He owns two dogs.

"Through a Dog's Eyes" debuts April 21 on PBS stations.

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