Robert Quinlan Costas (born March 22, 1952) is an award-winning American sportscaster, who is employed by MLB Network, where he does play-by-play and hosts an interview show called Studio 42 with Bob Costas. He is known for his long tenure with NBC Sports from 1980 through 2018, and for many Emmy awards.[1] He was the prime-time host of 11 Olympic Games from 1992 until 2016.