By Brandy McDonnell“America’s Got Talent,” summer’s No. 1-rated and most-watched show, will air its first live results show of Season 13 at 7 tonight on NBC. As previously reported, the first 12 of the top 36 talented Season 13 acts performed Tuesday night at the Dolby Theatre in Hollywood to perform live for America’s vote, as they vie for the $1 million grand prize and a headline show at the Paris Theater at Paris Las Vegas Nov.