Once, watching Play School

Once, watching Play School, a while back now, I saw that the teddy bear, dressed as a lion, was searching for a lost ball of wool.
“Getting hotter, getting hotter, oh, now you’re cold!” said the Play School host.
Suddenly, I felt overwhelmed. All the things to teach Charlie about the world! What was that creature, for a start? Was it a teddy bear or lion? What did it want with the ball of wool?
And how to explain that getting hotter means you’re almost there? Why, after all, is burning so right and freezing wrong?