Roberts showed up at the studio at 5 a.m. after waking at 3:45 a.m., reports ABC, heralding the visit, which was Roberts's first since undergoing a bone marrow transplant Sept. 20.
Her last appearance at the anchors' desk had been Aug. 30, though she has appeared live from her hospital room and her New York City apartment since.
"What a thrill to be back at GMA's Times Square Studio this morning and see the best folks in the world, my GMA family," said Roberts, 51. "I can't wait to get back to the anchor chair in a few weeks."
In late December, Roberts, a breast cancer survivor, celebrated the crucial 100-day benchmark from her procedure to treat myelodysplastic syndrome or MDS, a rare blood disorder that affects the bone marrow. She has repeatedly thanked GMA viewers for their good thoughts and messages.