I was a child who played on the jungle gym made of steel pipe in a Brooklyn playground made of concrete. There I'd hang by my legs, upside down, my head a yard above the hard cement that never did splatter my skull.

The early Sesame Street is out on DVD -- "Sesame Street: Old School" volumes one and two -- with a warning label: "These early 'Sesame Street' episodes are intended for grown-ups, and may not suit the needs of today's preschool child."

How sad. It makes me want to ride my bike downhill, fast, without hands or helmet. Just like I used to.