I guess it totally makes sense that Joss Whedon (Buffy creator and TV genius) is a Stephen Sondheim (musical genius) fanatic but I can't say that I knew before today:
The following is from Terry Teachout's blog (linked in the header above) which contains an excerpt from the latest Sondheim Review:
"Whedon's parents introduced him to Sondheim's musicals when he was a child, and he believes shows like Company and A Little Night Music were formative in the development of his creative vision, one that's "existential and bleak," though shot through with acts of devotion, courage and faith. "...I told my therapist that I knew all of Follies by the age of nine; she said, 'We have our work cut out for us.'"
That last exchange is classic, is it not?