Advent Calendar - Day 17

Today is the seventeenth day of the Blogtor Who Advent Calendar where each day, up until Christmas (it's the 25th, in case you're not religious and aren't aware), I'll be leaving a little treat for you (though you won't have to open a door to get it). Day 16 can be found HERE.

Included for your listening pleasure is the Blogtor Who audio commentary for the Doctor Who 2005 Christmas Special, The Christmas Invasion. Recorded by Cameron K McEwan and Alexander J McKinnon, the commentary can be enjoyed whilst watching the story - though, that's not essential.