NBC’s coverage of “The 91st Macy’s Thanksgiving Day Parade” has delivered the highest metered-market rating for any entertainment telecast on the broadcast networks since the Oscars in February, according to Nielsen Media Research. From 9 a.m.-noon on Thursday, the parade, hosted by “Tpday’s” Matt Lauer, Savannah Guthrie and Al Roker, averaged a 12.5 rating/27 share […]