Dave Knott writes: Today marks the 50th anniversary of the first television broadcast of Star Trek. The first episode of the science fiction series was aired on September 8, 1966. From its humble beginnings, Star Trek has gone on to become one of the best-loved and most successful television concepts of all time, an enduring pop culture touchstone that changed science fiction forever and spawned multiple series and movies that continue to this day. What does Star Trek mean to you? Are you a trekkie/trekker? What are your best memories of the series, and how has it affected your life?