Don’t underestimate the power of the press. A former Long Island television reporter in desperate need of a life-saving liver donation found a match after a loyal viewer stepped forward to offer to help. Ex-News 12 reporter Amy McGorry has found a donor. Instagram/amymcgorrynews Ex-News 12 reporter Amy McGorry, whose search for a match was covered by her former network and other outlets, discovered the organ donation on Monday while teaching her class at Long Island University. It sparked a tear-jerking moment with her students. “I learned the news while teaching my health science class at LIU – last day of class and told kids who have been through this with me and they all clapped,” she told The Post. “It was so cute.” McGorry, 56, has long battled two rare diseases – autoimmune hepatitis and primary biliary cholangitis (PBC) – that have degraded her liver to the point that she needs a donor with O-positive blood.…