Memories of the Jug-Band is a featurette included on the 2018 Blu-ray release of Emmet Otter's Jug-Band Christmas which also screened with the Fathom Events release to cinemas in December 2018.
Running at 10 minutes and 51 seconds, it features interviews with Cheryl Henson, Paul Williams, Rollie Krewson, Amy Poehler, and Craig Shemin. Poehler makes it clear that she did not work on the production, but that she's speaking strictly as a fan. Shemin and Williams discuss the song titles coming from the original book, and Henson stresses the importance "When the River Meets the Sea" has with her family and ponders the likelihood of Kermit the Frog singing "Rainbow Connection" on a banjo in The Muppet Movie had it not been for this collaboration.