Television personality Meredith Vieira will step in for Matt Laurer Friday for NBC's Olympic primetime coverage.     Photo: Evan Agostini, Invision/Associated Press

Vieira Takes Over NBC Olympic Coverage

After Costas, Lauer step down

First Bob Costas fell victim to an eye infection. Then an exhausted Matt Lauer stepped down, citing an overloaded schedule. Now it’s Meredith Vieira’s turn.

The former Today show co-host will make history Friday by becoming the first-ever woman to anchor NBC’s prime-time Olympic coverage solo. She’ll step in for Lauer, who filled in for Costas during the past three days.

The Sochi Winter Games mark the first time since 1988 that Costas has not hosted NBC’s prime-time coverage.

"Bob’s eye issue has improved, but he’s not quite ready to do the show," NBC Olympics executive producer Jim Bell told Today.com. "If your eyes are sensitive to bright lights, a TV studio is not the place to be."

Now Vieira just has to make sure she doesn't succumb to pink eye, too. She said on the Today show Friday that her "eyes are killing" her. We can only hope that she's joking.