Robert Quinlan Costas (born March 22, 1952) is an American sportscaster who is known for his long tenure with NBC Sports, from 1980 through 2019. He has received 28 Emmy awards for his work and was the prime-time host of 12 Olympic Games from 1988 until 2016. He is currently employed by Warner Bros. Discovery Sports, where he does play-by-play and studio work for the MLB on TBS and commentary on CNN. He is also employed by MLB Network, where he does play-by-play and once hosted an interview show called Studio 42 with Bob Costas.
Costas would call Missouri Tigers basketball and co-host KMOX's Open Line call-in program. He did play-by-play for Chicago Bulls broadcasts on WGN-TV during the 1979–1980 NBA season.
In 1980, Costas was hired by NBC. Don Ohlmeyer, who at the time ran the network's sports division, told 28-year-old Costas he looked like a 14-year-old.

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