The one and only Katie Couric is officially hosting the 2018 Winter Games! However, while we are excited to see the TV veteran back on our screens for the international sporting event, many fans are asking why Bob Costas is not hosting the Olympics this year.

Bob, who has been the face of NBC sports for four decades, stepped down last year from the position — and that includes any Olympics coverage. Katie is joined by Bob's predecessor Mike Tirico, who has already received Bob's blessing.

"I am going to be like the rest of the country, watching Mike Tirico, who will be an able successor in Korea for the Winter Olympics," Bob, 65, said on the Today Show last year. "I’ve said — and I meant it — that I’m taking this case by case, one at a time, and see how we feel after this. But they’ve been nice enough — they being everybody at NBC — to say that it’s up to me. You know, ‘If you want to do one, two, three, four more, you can. If you want to stop after this one, you can. It’s your call.’"

He continued, "So that’s very nice. I will not have to be escorted out. I’ll leave before they have to drop hints.” There is speculation Bob's health is related to his decision to semi-retire (he did host the Super Bowl this year), especially after he contracted pinkeye at the Winter Olympics in Sochi in 2014. However, ever the professional, he did not stop working.

“Well, you have to have a sense of humor about it,” Bob said at the time. “And I think people who are fair-minded will recall that I was as self-deprecating as possible from the start. You had to acknowledge it. If you had a broken leg and it was in a cast, just be under the desk, and no one has to know about it. If you feel lousy — and we’ve all gone to work feeling lousy — you’d disguise it and get through it. But in this case it really couldn’t be disguised. It was literally written on my face.” Ugh, we're going to miss you, Bob!

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Katie at the 2004 Olympic Games in Athens.

As for Katie, this won't be her first time at the Olympics. She has previously co-hosted the opening ceremony three times before, including the 2000 Summer Games in Sydney, Australia. "I'm really excited to dive in and start really educating myself about this particular Olympics," Couric told CNN. "For this one, I think the geopolitical backdrop is so much more intense than previous games."

She also revealed how she had a lot to study up on but she is a fast learner. "I feel that this is one instance when domestic politics are really gonna take a back seat," she continued. "This is gonna be a really wonderful opportunity for the country to unify, and stand together, support the athletes and really help celebrate their stories." We can't wait to watch when the Olympic Opening Ceremony airs tonight at 8 p.m. on NBC!