Summary

• The Harry Potter TV show will adapt the books more faithfully, likely with a season for each novel.
• Lengthier episodes will allow for more worldbuilding and a slower pace than the movies.
• Unlike the movies, the TV show can include all source material without cuts, improving the adaptation.

The Harry Potter books generally became much longer as the series progressed, but the movies remained roughly the same length. This resulted in more and more being omitted from the adaptations in later installments, which is far less likely in the next phase of the franchise's life.

Very little is known about Harry Potter movies' final efforts.

Harry Potter & The Deathly Hallows Was The Only Book Not Tackled In A Single Movie

The final Harry Potter book was split into two movies

2010's Harry Potter and the Deathly Hallows - Part 1 was the first time the movies' creative team had to decide where to leave the story, and not conclude the events of the source material. The onscreen events didn't continue until Part 2 was released in 2011. This is a format the Harry Potter TV show will need to adopt again and again throughout its run. In retrospect, the final two movies in the franchise feel like a dress rehearsal for the creative decisions that the show will need to make.

Of course, the TV show adaptation of Rowling's work will need to divide the book into much smaller chunks. Both Deathly Hallows movies are roughly 2.5 hours each, which is far too long for a traditional episode of TV. It's also highly likely that a multi-episode run adapting the final book in the series will be far longer than the two Deathly Hallows movies combined. There may also be a slight restructure, so each episode can end in a fitting manner.

"Fitting manner" doesn't necessarily mean each episode should end in a satisfying way. An exciting cliffhanger can also be a brilliant ending for an episode of TV.

The Harry Potter TV Show Will Probably Still Do The Deathly Hallows More Justice Than The Movies

HBO's Harry Potter adaptation can accommodate far more of the source material

The Deathly Hallows is the second-longest book in the series, with only The Order of the Phoenix boasting a higher page count. So, paired with the fact the book was used as the basis of the final movie, it made sense that the finale should be split into two parts - to accommodate more of the source material being included. That being said, even two movies weren't completely sufficient to avoid cuts. The Harry Potter TV show won't have this restriction, making the new format a superior way of ending the saga - and adapting the series in general.