REALITY Cheer Perfection TLC, 10 p.m. ET; 9 p.m. PT Get out the pom-poms. TLC is airing this program set in the world of competitive cheerleading as a one-off special, but if the ratings are strong, count on it becoming a weekly series. And because every good reality show requires a central hero/villain, the show focuses sharply on professional coach Alisha Dunlap, who demands absolute perfection from the young athletes performing handsprings and roundoffs at her cheerleading boot camp. Of course, everyone involved takes it way too seriously and two mothers almost come to blows in tonight’s special, while one of the young cheerleaders is reduced to tears.