FILE - This Aug. 20, 2012 file photo released by ABC shows co-host Robin Roberts during a broadcast of &quot;Good Morning America,&quot; in New York. Roberts has thanked her viewers for their support as she faces a bone marrow transplant. The &quot;Good Morning America&quot; co-anchor sent a video message taped from her New York hospital bed for airing on the program Thursday, Sept. 20, which is the day she's set to have the transplant. (AP Photo/ABC, Donna Svennevik, file)