Kids, this is what happens when your children watch way too much Tellytubbies. I wrote this when my daughter was four and addicted to the show. She is now 11 and I just went through it with my son. And let me tell you, between this and Boobah, I'm taking these four anytime.
The Doctor...well he belongs to Time...and the BBC, which I believe the Tubbies belong to also. Hence, the following story.

The True Orgin Of the Tellytubbies

One morning in Tellytubbyland, the Tellytubbies decided to go outside and play with the cute fuzzy bunnies.

So, after getting out of their Tubby-beds and eating their Tubby-toast, leaving a horrible mess for the Noo-Noo to clean up, the Tellytubbies grabbed their favorite objects and went outside to play with the long-suffering bunnies.

Tinky Winky had his bag to hold the bunny food. Dipsy had his hat for the bunnies to wear. Laa-Laa had her ball to bounce on the bunnies heads, and Po had her scooter to give the bunnies rides.

As the door to the Tubby house opened, the cute fuzzy bunnies froze, then scattered in different directions. They'd been unwilling participants in the Tellytubbies "playtime" before and wanted no part of it now.

The Tellytubbies walked out into the now bunny-free field.
"Bunnies?" Po asked.
"Bunnies?" the other three echoed.
"Play!" Dipsy said.
"Play!" The other three echoed. From their hiding spots, the cute fuzzy bunnies looked at the Tellytubbies as if to say "not this time, pal."

Then, from over the hill, came a sound. A sound so unnerving and grinding, it didn't belong in Tellytubbyland.

A sound the Tellytubbies remembered.
"Eh-oh," the four chorused.
The sound grew closer, as the source of the sound became visible.
"Eh-oh," they repeated.

On the meadow, appeared a blue police call box. The noise stopped, the door opened, and out stepped a bedraggled looking man with wild, curly brown hair, and a twelve foot scarf. He looked at the not-so-happy-now Tellytubbies with a mixture of relief and embarrassment.

"There you are," he scolded. "I have been looking all over time and space for you."
"Eh-oh," the Tellytubbies said again.
"Eh-oh is right," the man said, pointing to the blue box. "Now you four march right in there and behave yourselves." The Tellytubbies looked at the blue box, then back at the man. Then they started giggling. The man shook his head, exasperateingly, trying to hide a smile.
"No." he said. The Tellytubbies stopped.
"No," they repeated.
He clapped his hands. "Come along then, time for Tubby bye-bye."

Sighing dejectedly, the Tellytubbies took their favorite objects and made their way to the blue box. There would be no playing with the cute fuzzy bunnies today. Behind the bushes, the same bunnies were feeling quite elated.

The man waited until the last Tellytubby entered the box, then turned his attention to the dirt mound.
"And you should be ashamed. Allowing yourself to be taken by pets. Go on home...right now. Go on."
With a noise that hadn't been heard in Tellytubbyland in aeons, the dirt mound shuddered, then disappeared out of sight.

The man then walked back to the box, stopping to look around the make sure everything was in order.

"How embarrassing. To think my pets were smart enough to steal a TARDIS and disappear," he muttered to no one in particular. "I hope no one ever finds out about this one."

With that, the door to the box closed, the noise started again and blue police box disappeared, leaving only the estastic cute fuzzy bunnies behind to celebrate.