To celebrate the season, I’m sharing clips, extras, and behind-the-scenes notes from my one-hour special, “Rick Steves’ European Christmas.” Today we travel to Austria, where the festive swirl of heartwarming sights, sounds, and smells of Christmas abound. This is where the season’s most-loved carol, “Silent Night,” was first performed over 200 years ago. We knew that filming an intimate family Christmas feast would not necessarily come out natural and fun-loving on TV, so we filmed two and pick