In my opinion, the greatest sitcom of all time. Yes, I love Lucy and I acknowledge that The Honeymooners invented the formula, but the sitcom didn't become sophisticated, witty, and real until The Dick Van Dyke Show. This was the first show to show a child who wasn't a genius, a psychotic boss, a couple who had sexual chemistry and affection, a single woman in a "man's" career, an African American couple, and so many other firsts. And unlike so many other 'trailblazers' that have become watered-down over time, The Dick Van Dyke Show's wit still stands above every other sitcom on television right now. And hey, it was the first show to bow out before it got stale.