If you thought your family Christmas card was embarrassing, you might be in for some relief. At the same time, you might be in for some long-lasting jealousy when you see the latest video Christmas card from the Holderness family. If you followed them, this year's installment of video madness should come as no surprise. The Raleigh, NC-based family broke onto the YouTube parody scene last Christmas with "Xmas Jammies," a parody of Will Smith's "Miami." They followed up throughout the year with "Baby's Got Class" for back-to-school time and "All About That Baste" for Thanksgiving. This year, they decided...