What's new, pussycats? This week we're taking a break from our regularly scheduled programming to talk about "Documentary Now's" episode about the recording of a musical cast album, "Co-op: The Musical." Written by John Mulaney and Seth Meyers, the episode is a loving yet biting sendup of the making of Stephen Sondheim's "Company" cast album in 1970 and shows us the ups and downs of one grueling overnight recording session, with Mulaney as silently demanding genius-savant composer Simon Sawyer (ring any bells?).  Episode: Amazon Video  Cast recording: YouTube   Show Notes: More about Stephen Sondheim's iconic take on "Co-op" and its music. Here's him master-classing and also shading students doing "Getting Married Today."   Probably the crown jewel of John Mulaney's standup repertoire, which is saying something: The Salt and Pepper Diner. OK, fine, here's another one: The One Thing You Can't Replace. John Mulaney also wrote all the sketches of Stefon, the gay, Ed Hardy-wearing event correspondent who's in love with Seth Meyers. Podcast cover art: David Taylor Twitter: @bwaybabies Facebook: Facebook.com/broadwaybabiespodcast