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Bob Costas Ends 24-Year Run as NBC’s Prime-Time Olympics Host

When NBC televises next year’s Winter Olympics from Pyeongchang, South Korea, a familiar face will be gone from the prime-time anchor seat: Bob Costas, who held the job for 24 years, will be replaced by Mike Tirico, who joined the network last May.

“It just felt to me like the right time and it’s felt like the right time for a while,” Mr. Costas said in an interview this week, in advance of NBC’s scheduled announcement on “Today” on Thursday.

“This was a good time to step away, while I could still do it,” he said.