[ The Atlanta Journal-Constitution: 3/8/03 ] CNN shutting down 'Talk Back Live' By CAROLINE WILBERTAtlanta Journal-Constitution Staff Writer "TalkBack Live" is dead. CNN is canceling the afternoon show, possibly evidence of a renewed focus on hard news. The show, most recently hosted by longtime entertainment reporter Arthel Neville, will be replaced by an extra hour of "Live From," which previously ended at 3 p.m. Both shows are produced in Atlanta. "Live From" anchor Kyra Phillips relies on the network's correspondents, domestically and around the world, for reporting on news of the day. As part of the change, CNN reporter and...