I bought the season 1 DVD, saw the pilot, and was pretty much hooked.
If I would pick one particular scene I would say the scene in the Bronze with Buffy and Giles on the balcony. Giles tells Buffy she should be able to sense any vampire in the building and Buffy does it in her own way.
Always loved that scene, definitely made me think that this show will be fun.
Giles: The point is, a Slayer should be able to see them anyway. Without looking, without thinking. Can you tell me if there's a vampire in this building?
Buffy: Maybe...
Giles: You should know. Even through this mass and this... din, you should be able to sense them. Well, try! Reach out with your mind. (Buffy looks around) You have to hone your senses, focus until the energy washes over you, until you, you feel every particle of-of--
Buffy: There's one.
Giles: W-where?
Buffy: Right there, talking to that girl.
Giles: You don't know--
Buffy: Oh, please! Look at his jacket. He's got the sleeves rolled up, and the shirt! Deal with that outfit for a moment.
Giles: It's dated?
Buffy: It's carbon dated. Trust me, only someone living underground for ten years would think that was still the look.
Giles: But you didn't... hone.
Brilliant, especially Giles last comment. 🙂
/SK