When I was a kid I loved Scooby-Doo
and the Mystery Machine crew. The fantastic nature of the crimes hit my desire for sci-fi, the mysteries for detective stories, and Shaggy for humor.
Now that I’m a grownup I love Dr. Who
and the Tardis crew. It has exactly the same mix of the fantastic, detective style-mysteries and a large dose of funny.
But there is one large difference, as pointed out in this comic: in Scooby-Doo the fantastic turned out mundane, and in Dr. Who the mundane turns out mysterious.
To me, this perfectly matches what we want at particular ages. As a kid the whole world is mysterious and a little scary, and you’re constantly being challenged to figure new things out. How do those huge, heavy clouds stay in the sky? Why won’t the troll in my closet stop making that creaking noise? What’s the real way to protect myself from cooties? It’s a little scary, but most of the time those fantastic experiences turn out to have perfectly simple explanations and we are able to go about our business. Scooby-Doo and his buddies showed us each week that even the scariest monsters in the world were just pathetic old men who could be taken down by some meddling kids.
As an adult even the mysterious is boring. Thirty years ago a laptop connected to the Internet we could use to watch Dr. Who was miraculous, and now it’s $399 at Target. You can get a 3D printer for your house to make functional tools, something that would have been far fetched in a 1960s television show. Within a couple years cell phones do more than tricorders! We’re surrounded by new, exciting, amazing phantasms and are bored with them. Dr. Who assures us that there is still magic in the world, or at least aliens looking to kill us and steal our brains.

For a kid, you experience a lot of mystery that turns out to be normal -- just like Scooby-Doo's crew. As an adult you wish the mundane would become mysterious -- just like in Dr. Who.