Robin Roberts, Lara Spencer, Jess Cagle and Tyson Beckford are to cover the red-carpet arrivals at the Oscars ceremony in Los Angeles, ABC announced. Roberts and Spencer are the co-anchors of the network's "Good Morning America" program. Cagle is a "GMA" contributor and editorial director of People and Entertainment Weekly magazines, and Beckford is a model and actor. "The Oscars Red Carpet Live" program is to air March 2 at 7 p.m. ET. Ellen DeGeneres is to serve as host of the event, which will honor the best in film for 2013.