By Kelli Catana Christmas is coming and as usual there's always someone on your shopping list that's hard to buy for. But have you ever thought of giving a DVD box set of a great television series?! I mean, who doesn't love TV? And with box sets you can find just the right gift for everyone on your list. Whether your hard to shop for person is young or old, male or female, there's a set right for everyone and they can be enjoyed by the whole family. Here's my top 10 list of best …