It is learned that Giles' nickname in his youth was Ripper. At one point, a prequel spin-off named "Ripper", detailing adventures of young Giles, was proposed.
Willow's line, "Wild on me equals spaz" was cut when shown on the BBC because, in the UK, "spaz" is a mildly offensive term, deriving from the archaic term "spastic", used to describe a handicapped or disabled person.
The first interaction between Willow and Oz. (They bump into each other but he doesn't recognize her in her ghost costume.)