For nearly 100 deserving students from Dymally High School in Los Angeles, CA, Wednesday was certainly one to remember. Kicking off its sixth year, TLC’s Say Yes to the Prom initiative brought more magic and made more prom dreams come true than ever before. For the first time, fashion icon Betsey Johnson joined TLC’s Monte Durham to host the day of mentoring, prom dress and tuxedo “shopping,” head-to-toe makeovers, and a red…