The letter of the day is Y for YouTube: today, YouTube announced it’s now the largest digital library of “Sesame Street” content. More than 100 full “Sesame Street” episodes from previous seasons are now available on YouTube and the YouTube Kids app for the first time.

Families can check out episodes ranging from the very first one, from 1969, all the way through today, for free across both the main Sesame Street YouTube channel and the Sesame Street Classics channel.

Find out more on the YouTube blog.