Inside TV have a brief feature with Katherine on their website entitled Celebrity's Favorite:

Katherine Heigl of Grey's Anatomy loves her TV! "I'm not one of those people who go, 'I don't watch TV.' I can't even pretend to lie about that," she told Inside TV. The star of Grey's Anatomy also told us some of her favorite shows: The O.C., Lost, and Desperate Housewives. Those are some of our favorites too!