06/13/2011 07:52 am ET Updated Aug 13, 2011

HLN Surges On Casey Anthony Coverage

As Court TV and CNN did during the O. J. Simpson trial in 1995, HLN has attached itself to the Casey Anthony murder trial, making it the new trial network of record. Its audience has more than doubled since the trial started May 24, prompting the channel to add more hours of coverage, led by Nancy Grace, outside the Orlando, Fla., courthouse.