Bob Costas’ iconic run as primetime host of Olympics is at an end, with NBC Sports announcing that Mike Tirico would take over duties beginning with PyeongChang 2018. Costas served as NBC’s primetime host for a U.S.-television record 11 Olympics – every Olympics on NBC since 1992. Costas also served as NBC’s late night host at the 1988 Seoul Olympics.

In a conference call with reporters, Costas noted that “I had made this decision more than a year ago, and people at NBC knew about it, but we didn’t want it even in the tiniest way to obscure our coverage of Rio or get in the way or distract us in any way. So we waited until now, exactly a year out from the start of the Winter Olympics in South Korea, to make the announcement.”

“Bob has been so gracious about all of this,” said Tirico. “How lucky am I to get this opportunity of a lifetime and have someone who I think the world of available as a resource? And Bob has said he would be there for any questions I may have or any guidance I might need. I’m just so blessed to be supported by my family and all the good people that are now part of my NBC family as well.”