0:16 : Phillip Henry is played by actor Stuart McLean, who’s another of those actors who’s been in everything from Sons of Anarchy to This Is Us.

1:01 : Deirdre Page actress Wendy Way also featured in Bones.

3:43 : Giles dreams of the ritual that brought Eyghon forth. In Death and Consequences, we flashback to that night when Giles was 21 and see Giles and Ethan attempt to save Randall.

4:15 : Willow and Buffy play ‘Anywhere but here,” a fantasy game they’ll play again in Season Eight’s Anywhere But Here, funnily enough.

5:45 : A great Giles moment when Buffy asks if she’s ever let him down. “Do you want me to answer that or shall I just glare?”

7:49 : This is the first kiss between Giles and Jenny (that we see, anyway).

8:15 : Detective Winslow, presumably of the Sunnydale Police, is played by Carlease Burke, who was also in an episode of Dollhouse.

10:10 : The Mark of Eyghon is tattooed onto an individual and his group. It acts like a homing device for the demon to be summoned to, to walk on the earthly plane. Those who possess the Mark can not escape unless the Mark is removed. There is also limited empathic skills between Eyghon and others who wear the Mark. Giles and Ethan both have one in this episode.

13:30 : This is the first time we go inside the apartment and it’s mostly the same as it will remain until the last time we see in Season Five. Mostly.

14:56 : Giles’ Mark of Eyghon is on his right arm. Although sometimes he can be seen without it in short sleeves…

14:56 : …he can’t have had it removed as he still has it as late as Season 10.

16:58 : Xander and Cordelia’s start bickering much earlier than usual. Xander at one point suggests using Buffy as a barrier and a demilitarised zone between them, where as she asks the Slayer to ‘delouse’ him.

17:42 : This is the first mention of Xander’s Uncle Rory, who seems the best behaved of the Harris family when we meet them in Hell’s Bells. He also lends Xander his car in The Zeppo – although it’s unclear whether he knows this or not.

19:16 : Robin Sachs is back as Ethan Rayne, two episodes in one season. He appears in two more episodes of the series, season three’s Band Candy and season four’s A New Man. He’s killed via gunshot to the head in The Long Way Home, but resurrected by Eyghon, which we learn in Death and Consequences.

19:34 : Buffy punches Ethan for the first time. This tends to happen every time they meet. Buffy even seems to take some joy and comfort in it each time.

19:57 : Just a thought as the kids leave class and arrive in the library… Willow’s helping Jenny for extra credit and Xander and Cordelia are behind. Buffy’s not in Saturday school. All that’s good and all, but are you telling us that the Slayer, who has trouble attending any class – and the fact we’ve never seen her in Jenny’s class at all – isn’t falling behind? And Buffy’s skills using a computer (as seen in I Robot, You Jane) are… rudimentary to say the least…

20:16 : Giles wakes up from more memories surrounding the ritual. The sequences are quite nightmarish and ghoulish in places. Scary stuff.

22:13 : Ethan never left town after Halloween, which makes sense. In A New Man, he says that he should always leave town after the scheme has started – “It’s the staying and gloating” that gets him caught – and punched – every time.

22:16 : Cordelia is confused by Ethan’s use of the word ‘Ripper’ from Halloween…

22:22 : …but then Giles grabs Ethan up by the scruff in anger and temper. This is the first time anyone else other than Ethan has seen this side of Giles; indeed, to them, it seems completely out of character.

23:01 : When Phillip breaks free from the book cage, note that Cordelia jumps into Xander’s arms and she doesn’t let go. In fact, he shelters his arms around her so completely, she couldn’t…

24:03 : Jenny’s eyes flash green with CGI. She’s been possessed by the demon, but the transformation is nowhere near complete…

25:24 : A great moment! Cordelia’s eagerness and cute smile as she asks Buffy what she can do to help. It’s endearing. She’s also being nice. Okay, she doesn’t particularly want to work with Xander, but, more importantly, she wants to help.

29:47 : Jenny pulls back from the kiss with Giles and the first stage of her demon makeup has been added. For now it’s relatively light, but it’ll get worse…

30:26 : Eyghon, in Jenny’s body, tells Giles that he’ll “be seeing you.” Ethan left the same message for Rupert at the end of Halloween.

30:56 : Giles tells Buffy that he ‘created’ the demon. He’s being much too hard on himself, as usual. The correct word would be ‘summoned’ or even possibly ‘channelled’ or ‘released’.

31:09 : Yes, that is Anthony Stewart Head‘s real hair. No that is not his body, however: his head has been stitched onto a picture of rock icon Sid Vicious, who Spike’s look was modelled after.

31:15 : Giles describes the event we’ll see in flashback in Death and Consequences.

33:29 : We’re back at the empty costume shop that Ethan rented in Halloween.

36:16 : Xander and Cordelia go at each other and insult each other until they’re faces are almost touching. If Willow hadn’t shouted them out of it, it’s likely they may have kissed earlier than they do. In any event, the two of them squabbling is quite hilarious. And Xander is so punching above.

36:35 : Willow takes charge, commanding the quarrelling pair to shut up or get out of ‘her’ library. That would be her resolve face. It basically means “You don’t want to make me angry…”

36:35 : …and she gives it to Xander again in Becoming and, more seriously, to Giles in Flooded.

38:24 : And this now is the full Eyghon make-up. Horrifying and a quite uncomfortable-looking prosthetic. Poor Robia Scott.

39:35 : In a horrific piece of foreshadowing, Angel chokes Jenny to get Eyghon to leave her body. In Passion, Angelus will snap her neck in one swift turn.

39:53 : Look closely at David Boreanaz here: there are shots of him human, human possessed by Eyghon, vampire, vampire possessed by Eyghon and the full Eyghon. That’s not a pleasant day in the makeup trailer.

40:01 : Eyghon is not dead. In Death and Consequences, it’s revealed that he possessed the body of a dead rat and escaped the shop, finding a homeless man and possessing his way from there…

42:13 : Jenny, tired and hurt since the possession, backs away from Giles, putting the brakes on their fledgling romance. This will take some time…

42:40 : And it’s about time! Buffy finally sees Giles as something other than an instructor and a mentor; she finally sees him as a person, with his own goals, dreams and flaws. From this point, their father-daughter bond will grow, even to the detriment of his Watcher duties.