Because of our preconceived Bat-notions, people watch a clip of '60s Batman and assume that it's some television experiment gone horribly wrong. It was nominated for an Emmy for best comedy in 1966, but history has revised it as people with the best intentions of creating a serious Batman show slipping up somehow and producing the exact opposite thing. God, people in 1966 were idiots! Didn't they know that making everything colorful isn't the way to go about delivering a moody billionaire's fight against evil? How widespread was fetal alcohol syndrome among the writers of '60s superhero television?
In the first episode of Batman, Batman goes into a club in full costume, dances with The Riddler's hot henchwoman, has his orange juice drugged, and then stumbles back out to his car. Or, he experiences, as David Hasselhoff would call it, Monday morning:
Police find Batman draped over his steering wheel and take his keys away. Batman, recognizing that it isn't safe to drive your nitro car when you're this sloshed and bearing a ceaseless hard-on for upholding the law, gives his keys away without a fight:
"Your B.A.C. says you're at twice the legal limit!"
"My B.A.T. says I need some fuckin' HASH. BROWNS."
Also, the main plot of this episode deals with The Riddler suing Batman over false arrests. Everything about those last few sentences reads "Hey, guys. Let's make a funny show about Batman!" and not "We tried to make a dramatic superhero show, but we were just toooooo stupid. And could you show me that cool use-a-fork-to-eat trick again?" To look at that and decide that it's a vain attempt at creating an entirely different kind of TV show is being willfully ignorant of the principles of logic.