Plot: Chris and his co-hosts salute the new year with a one-hour review of the greatest and geekiest moments of 2011. Special guests Wil Wheaton (“Star Trek: The Next Generation,” “Stand By Me”), Nathan Fillion (“Firefly,” “Castle”) and stand-up comedian Kumail Nanjiani (“Franklin & Bash”) join in the nerd-eriffic year-end festivities, including the crowning of “Nerdist of the Year