Matt Smith’s reign as The Doctor is coming to an end soon, with the actor’s final appearance coming on this year’s Christmas episode of Doctor Who. And based on the trailer for the special, it looks like he’s going to have a rousing sendoff. But before we give Smith a teary-eyed sendoff, the Internet has given us one amazing early Christmas present.

Talk to any fan of Doctor Who and there’s a 95% likelihood they’ll also be a fan of Sherlock. After all, both shows are incredibly fun, distinctly British, and led by the supremely talented Steven Moffat. Given the shows’ similarities, many fans have been clamoring for some kind of Sherlock/Doctor Who crossover for years. Now, thanks to the incredible work of a mysterious YouTuber named “John Smith,” we have it.

Using the magic of After Effects, John Smith created an incredible five minute mashup of the two shows in which Sherlock actually steps aboard the Tardis and talks to The Doctor (all while Watson watches wistfully from the window). Unlike many mashups, which simply crop scenes together, John Smith used his VFX knowledge to make the scenes perfectly integrated. To learn more about how he accomplished this (SPOILER ALERT: it involved a lot of rotoscoping), check out the video below.

I can only imagine the amount of fan fiction that this video will inspire (some of which will no doubt be…mature). But isn’t that what the Internet is for? A crossover like this would never happen in the real world, but thanks to YouTube, we can all imagine what it would be like for the world’s greatest detective to travel through time and space with The Doctor.

Why not both?

As mentioned at the top of the post, Matt Smith will make his last appearance in Doctor Who in this year’s Christmas Special on December 25th. If you’re one of the 5% of Sherlock fans that hasn’t watched Doctor Who but are intrigued by this mashup, check out our Doctor Who viewing guide to get started.

In the meantime, tell us what you think of this mashup in the comments.

The Doctor Who Christmas Special premieres December 25th, 2013 @9pm. Sherlock season 3 premieres in the UK on January 1st, 2014 and in the U.S. on January 19th @10pm.

Source: YouTube