Fill Your Holidays With Marathons From Discovery Communications

If you’re looking at long days ahead at your in-laws’ and wondering how you’re going to pass those hours, we have just the answer for you: marathons of your favorite Discovery Communications programs! Here’s a guide to what we’ve got over the next week or two: Friday December 23: Gold Rush on Discovery starting at 9am ET/PT, Dr. G: Medical Examiner Fan Favorites on Discovery Fit & Health starting at…