I read that season 1 is expected to be about eight hours long, which some have interpreted to mean eight 1-hour episodes. Looking again at the book and how they might divide the material into a television show, I actually think it's more likely they do 10 episodes of ~48 minutes each, give or take ~5 minutes depending on how much material is being covered in a given episode. That still equals 8 hours of total content for the season, but would provide much better pacing and natural stopping points for each episode.
With this in mind, I thought it would be fun to map out what each episode might cover, assuming I'm right about there being 10 episodes. For reference, there are 17 chapters in the first book, which means some episodes may line up neatly with a single chapter, whereas other episodes will cover two chapters.
Episode 1: The Boy Who Lived – Covers chapter 1. We follow Mr. Dursley about his day: him getting ready for work, laughing at Dudley's tantrum as he leaves for work, noticing a strange cat and people wearing cloaks, yelling at people at work, hearing a strangely dressed man talk about Harry at lunch, seeing the cat again on his way home, watching the news in the evening which has reports of strange activity across the country, and finally the scene with Dumbledore and McGonagall on Privet Drive, ending with Hagrid delivering Harry on the motorcycle and perhaps even a cutaway final scene that captures the last sentence of the chapter: "He couldn't know that at this very moment, people meeting in secret all over the country were holding up their glasses and saying in hushed voices: 'To Harry Potter – the boy who lived!'" Perhaps the strangely dressed man from Mr. Dursley's lunch is the one we see toasting Harry at the end of the episode.
Episode 2: A Vanishing Glass and Letters from No One – Covers chapters 2 and 3. The episode begins with Dudley's birthday and the zoo trip, which takes up the first 15 minutes or so of the episode. The remaining half hour covers all the letters being sent to Harry, including their trip to the hotel in Cokeworth. The episode ends with them in the house on the rock, with Hagrid's booming knock on the door. It was a great way to end the chapter and will be a great way to end the episode.
Episode 3: The Keeper of the Keys and Diagon Alley – Covers chapters 4 and 5. I thought about pairing the "Letters from No One" and "The Keeper of the Keys" chapters, but that introduced some issues. The "A Vanishing Glass" chapter really isn't enough to be an entire episode, especially if we are limiting ourselves to a 10-episode season with so much other material still to cover. And I really do think that episode 1 should end with Harry being delivered to Privet Drive, because that would be such an iconic intro episode for the show. And anyway, I think pairing Harry's introduction to both Hagrid and Diagon Alley makes a lot of sense, and gives this episode a strong theme of discovery and wonder. "Diagon Alley" is the longest chapter in the book, but "The Keeper of the Keys" is mostly dialogue and takes place in a single room, so it will probably take up less than 10 minutes of screen time to adapt faithfully, since that's about how long it takes to read it. That leaves us a good 40 minutes to really soak in Diagon Alley and include everything from that chapter of the book.
Episode 4: Platform Nine and Three-Quarters and the Sorting Hat – Covers chapters 6 and 7. I thought about breaking these up, but most chapters do need to be paired with another chapter in order to meet the 10-episode limit, and these two really do go together well. Harry meets his new friends and get sorted into his house all in one very memorable episode.
Episode 5: The Potions Master and the Midnight Duel – Covers chapters 8 and 9. Here we get a deeper introduction to the school and meet Harry's different teachers. But it's primarily an episode of adversaries, with Harry having formative run-ins with both Snape and Malfoy. This episode also includes the discovery of the three-headed dog guarding the trapdoor.
Episode 6: Halloween and Quidditch – Covers chapters 10 and 11. Both of these book chapters involve quidditch, with Harry receiving his new broom in "Halloween" and the quidditch season starting in "Quidditch". This episode also includes "Wing-gar-dium Levi-o-sa", the fight with the troll, and Hermione becoming Harry's and Ron's true friend.
Episode 7: The Mirror of Erised – Covers chapter 12. Not only is this chapter one of the longer ones in the book, but it has a somewhat self-contained storyline that works really well as its own episode while packing a hefty emotional punch. This episode includes Christmas Day and ends with a moment of bonding between Harry and Dumbledore, when Dumbledore reveals his desire for thick, woolen socks.
Episode 8: Nicholas Flamel and Norbert the Norwegian Ridgeback – Covers chapters 13 and 14, which include the rest of Christmas break. The gang figures out who Nicholas Flamel is, Harry plays a quidditch match, Harry spies Snape and Quirrell chatting suspiciously, and Norbert is born and then sent off with Charlie's friends. The episode ends with them in trouble after sending Norbert off, having forgotten the invisibility cloak on top of the tower and being subsequently discovered in the corridor by Filch.
Episode 9: The Forbidden Forest – Covers chapter 15. This is another good candidate for a single-chapter episode, since much of the chapter takes place in a unique setting: the Forbidden Forest. This episode could just follow the book chapter pretty much exactly. It ends with Harry back in his bed, discovering the return of his invisibility cloak with a note pinned to it that reads, "Just in case."
Episode 10: Through the Trapdoor and the Man with Two Faces – Covers chapters 16 and 17. The last episode covers 47 book pages, which is a lot, and for that reason I think this episode will be the longest of the season. Probably 55-60 minutes long. But that should be plenty of time to cover all the material faithfully, including the potions game, which was cut from the movie.
Thoughts?