What I truly love about the Adam West Batman is that it was a perfect representation of what the Batman comic was like at the time. It's glorious.
The problem with DC trying to make movies is essentially the fundamental difference between DC heroes and Marvel heroes. The primary DC heroes (Batman, Superman, Wonder Woman) are iconic, flawless gods. Superman are Wonder Woman are literal gods. Batman is the world's perfect man. Super smart, knows just about every martial art, detective, ninja-samurai, scientist, inventor, peak of physical conditioning, marksman, etc. Because of that, they keep trying to work around that because, as a movie, most people would be bored by this. The Nolan movies just focus on Batman's martial art skills and ninja stuff and completely ignore the vast majority of his brain & detective skills and make Lucius Fox the inventor of his stuff.
This is why DC heroes work sooooooo much better as TV shows or Animated. With a show, you have the ability to draw out the character a bit more through various episodes and circumstance. Batman: The Animated Series is without a doubt the greatest example of that. Superman: The Animated Series was as well because it gave us a confident, non-bumbling Clark Kent who actually WAS Clark Kent and not just Superman. These shows can do things that movies simply cannot because they don't have the time. It's easier with Marvel heroes because they're meant to be flawed. Well, except for Captain America!