Fright Night: Willow's stage fright, first hinted at in the previous episode, Puppet Show, takes on operatic proportions this week. The scene she hasn't rehearsed is a duet from Puccini's Madame Butterfly. Willow plays Cio-Cio-San.

Grave Matters: Sarah Michelle Gellar hated the location filming for this episode as she has a morbid fear of real graveyards and being buried alive. The actress was far happier when the crew built their own mock graveyard in the car park of the Buffy lot for season two.

House Husband: Buffy's dad Hank is played by Dean Butler, famous for his role as Almanzo Wilder in cosy seventies American drama Little House on the Prairie.

Oops: How exactly did vampire Buffy manage to get to the hospital in broad daylight without sizzling?

In Willow's opera nightmare, Aldo gestures for Willow to sing. In that bit of Madame Butterfly, he should have another three lines to sing before it's her turn. Must have been the edited version.

Continuity: It's revealed that Giles can speak five languages, "on a normal day." Buffy's date of birth finally settles down after I Robot, You Jane. Her gravestone reveals that she was born in 1981.