The blood clots, also known as a subdural hematoma, came about after Trebek fell in October.
Tapings of "Jeopardy!" have been put on hold while host Alex Trebek recuperates from surgery. The 77-year-old promised a speedy return to the show. The surgery was successful, and he was released from the hospital two days later.
The game show host is expected to make a full recovery and resume taping mid-January.More news: North Korea strikes its own city Tokchon as test missile goes wrong
Trebek's medical leave of absence is not expected to affect the broadcast schedule for the show, which is taped months in advance.
In fact, in his video announcement (above), the industry vet promised to be back filming Jeopardy! episodes "very, very soon".
The following year, he suffered a mild heart attack.
Watch Trebek's YouTube announcement below.