Watch a new clip from Black Mirror: White Christmas before it airs tonight in the UK

For those of you lucky enough to be spending the holidays in Greenwich Mean Time, Christmas comes early tonight with the premiere of Black Mirror: White Christmas on Channel 4. The special holiday installment of Charlie Brooker's "information age Twilight Zone" marks the end of a nearly two-year hiatus since the last episode, "The Waldo Moment." (It will air on December 25th on DirecTV here in the States.)

Here's a sneak peek of Jon Hamm, looking very Season 4 Don Draper, explaining to Rafe Spall how his wife "blocked" him, and we don't just mean on Snapchat. Betty Draper, you were clearly born in the wrong century.

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