The operas chosen for the video are those productions being done by the CLO for the current season. That's why the one I posted earlier here was between Maria and Liesl from The Sound of Music talking out their mother-daughter problems.
That was the last of the series. But here's how it all started. It's Hansel & Gretel getting their feelings out for the Doctor. Hansel has a hard time convincing him that when he describes a woman as a witch, he's not speaking euphemistically, but "No, really, she's an actual witch."
Worth noting that the actress playing Gretel here is Aidy Bryant, who you might recognize now as having recently joined the cast of Saturday Night Live. (I didn't realize until checking up on all this that a major new performer on SNL – and one of my favorites -- is also from Second City. Cecily Strong.)
Anyway, leaving their stage in Humperdink's opera, here are Hansel and Gretel trying to get to the bottom of things.