 RESTON, Va., July 21, 2021 PRNewswire -- Comscore NASDAQ: SCOR, a trusted partner for planning, transacting, and evaluating media across platforms, and Spectrum Reach, the advertising sales business of Charter Communications, Inc. NASDAQ: CHTR, today announced Spectrum Reach is transitioning to the use of Comscore as its preferred source for local audience measurement currency, beginning in its Southeast region. 