AT&T AUDIENCE Network to Bring ‘Mr. Mercedes Immersive Experience’ and Show Panel to 2018 San Diego Comic-Con International ‘Mr. Mercedes’ Panel Features Stars of Season 2 Premiering on AT&T AUDIENCE Network Aug. 22 at 10 p.m. ET/PT Fully Interactive Activation With Never-Before-Seen Mixed Reality Game Experience EL SEGUNDO, Calif., June 21, 2018 – The AT&T AUDIENCE Network…