03/18/2010 05:12 am ET Updated Dec 06, 2017

Diane Sawyer Announces Final Week On "GMA" (VIDEO)

Diane Sawyer told viewers Monday that this would be her final week anchoring ABC's "Good Morning America."

"I hope you celebrate with us this week, laugh with us this week," Sawyer said, adding that she's calculated that she's anchored "roughly" 2,881 shows in her ten years with the program.

Sawyer's co-anchor Robin Roberts said "it is so difficult" to lose the co-anchor she described as "my Thelma."

"Thank you, we are going to do all things just like you this week," Roberts said.

"It is amazing, I think to all of us, what we've been able to see you do on this show," co-anchor Chris Cuomo said to Sawyer. "It makes us all proud."

Fox News' Bill O'Reilly, who was a guest on the program, joked that, "just for getting up," Sawyer and her fellow morning show hosts "get a B+"