There is no other link, unless you want to google search the article. I'm watching the video now without signing in. Maybe it's your computer's settings or something?
Basically Sesame Street episodes from when they first started the show that have been released on DVD now are labeled with warnings that the show is only intended for adults, because of things like Cookie Monster eating too much sugary items, Oscar having depression, and the children climbing on rocks and playing with dirty farm animals.
Just another example of our country wasting their time protecting us from an innocent show like Sesame Street, rather than using money to actually do productive things, like fix up schools or improve cities or something.
Now that is just ridiculous. What young child would understand any "adult" reference, never mind give flying monkey shit? Today's generation is just TRYING to ruin childhood ><