» Familiar RTD tropes are employed.
» The Silence make an appearance.
» Flickr, YouTube and Twitter get mentioned.
» Nintendo, Apple and Ugg boots will be pleased.
» For this wondering if Christmas would be mentioned four episodes in a row, you won’t be disappointed.
» The cast of a television show referenced in Series 6 Part 2 appear.
» A classic monster is mentioned (and technically seen).
» A talent the Doctor showed off in The Lodger makes a return.
» Things can only get better.
» Adric. Poor Adric.
Don’t forget to read The Gallifrey Times’ spoiler-free preview of the episode. Our set of teasers will be released mid-next week.