What stayed
Optimus Prime as the original superhero and the values represented through the robots.

Giant robots, enormous explosions and the childhood discovery that your moral compass might sound exactly like Optimus Prime.
What stayed
Optimus Prime as the original superhero and the values represented through the robots.
Why I recommend it
I watched it as a child and looked up to those values. It feels especially interesting now that we are entering a robotic age. Somehow, robots helped teach an entire generation about courage, restraint and leadership.