Double "Jeopardy!" Meet your two new quiz show hosts: Mike Richards and Mayim Bialik. Richards, will lead the nightly syndicated "Jeopardy!" and "The Big Bang Theory" star Bialik, will take on primetime specials and tournaments on ABC, starting with a college championship next year. "Jeopardy!" has spent the past seven months rotating 16 guest hosts at the podium once manned by late host Alex Trebek. Some, including LeVar Burton and former champ Ken Jennings, were contenders for the permanent slot, while others, such as "Good Morning America" anchor Robin Roberts, were paying tribute to Trebek's legacy. Two of them – Richards, 46, and Bialik, 45 – got the permanent nod from Sony Pictures Television. Richards, only the second host in the current version of the show's 37-year history, will take over for the 38th season premiere on Sept. 13, and is expected to step down from his producer role.