For Boomer-era people on, the annual watching of certain movies has become a traditional part of marking the holiday season. But this can be a chore. The equally essential TV specials, like Rudolph, The Grinch and A Charlie Brown Christmas, don’t require the same investment of time, during an already hectic season, as movies do. Yet when the holidays are over, you may feel a pang that you didn’t get to White Christmas or Scrooged...