Mayim Bialik says she is out as host of "Jeopardy!"

Mayim Bialik announced Friday that she is out as host of "Jeopardy!"

In a post on social media, "The Big Bang Theory" star wrote: "I have some Jeopardy! news. Sony has informed me that I will no longer be hosting the syndicated version of Jeopardy!"

The 48-year-old Bialik did not elaborate on what led up to her departure. She said she was "honored" to have received an Emmy nomination this year for outstanding host of a game show, and said she "was deeply grateful for the opportunity to have been a part of the Jeopardy! family."