RSH - 26 Feb 2013 EARNINGS FORT WORTH, Texas, Feb. 11, 2013 /PRNewswire/ -- RadioShack Corporation (RSH) will host a live webcast of its fourth-quarter earnings conference call with investors starting at 9 a.m. ET on Tuesday, Feb. 26, 2013, to review financial results for the fourth quarter, which ended December 31, 2012.