Since the early 1980s Walnut Hill Farm has been growing and delivering veggies to restaurants and markets in the Portland, Ore., metro area. A year ago a TV crew came to my farm to film a Public Broadcasting episode of “Chefs A’Field.” Philippe Boulot, acclaimed executive chef at the Heathman Restaurant, arrived with his daughter Chloe, to tour my farm. The cameras rolled as we browsed among tomatoes, basil, lettuce and other crops. I rode my ATV while Philippe and Chloe walked, and the three of us picked, sampled and chatted, as part of episode 10, “Oregon Organics,” which will air early this month on PBS