PBS brought together two of the channel's most beloved actors for a helpful video on counting on Tuesday: Sherlock's Benedict Cumberbatch and Sesame Street's Murray.

Or rather, Murray-arty, as the Muppet prefers to be called these days.

Whichever name he goes by, Murray could use some help separating Cumberbatch from his broody detective counterpart. Despite the British actor's attempts to correct his fuzzy friend from calling him by his character's name, they meet a happy medium with "Benedict Sherlock."

The video continues with a brainteaser, and the actor proves to be less impressive with his deductive skills outside of Baker Street.

Oscar the Grouch Meets Grumpy Cat

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