Finally they pass the Precambrian Era and see the dazzling psychedelic fireworks of the Earth's creation.
The serial made no sense. The boys' costumes and hair styles changed; they got taller and shorter; the voice-over narration didn't match the action; no one wonders how they're going to get back home again; and where did boys visiting a museum get a boat, anyway?
Still, it became one of the iconic images of my childhood, maybe because it made no sense. It was a puzzle, a mystery to be unraveled, and that puzzle involved boys facing the world together.
In a pivotal scene, Doc (Josef Lukas) loses the diary with his scientific notes of the journey, and Jo-Jo (Victor Betral) fights off a dinosaur to retrieve it. Their subsequent moment of emotional intimacy reverberated through my childhood.
I noticed, but I didn't care. I was busy watching the boys bonding with each other through science fiction adventure.