Sabkay on YouTube has uploaded the full 50 Greatest Harry Potter Moments special to YouTube and you may watch below in a playlist!
Also, thanks to SS we have a list of all 50 moments:
50.Philosopher’s/Sorcerer’s Stone – Harry, Ron, and Hermione first meet on the Hogwarts Express 49.Order of the Phoenix – Welcome to the Ministry of Magic (Harry and Arthur Weasley) 48.Chamber of Secrets – Ron’s Howler from his mother in the Great Hall 47.Philosopher’s/Sorcerer’s Stone – The Mirror of Erised (Harry seeing his parents) 46.Deathly Hallows: Part 1 – Harry and Hermione dancing in the tent 45.Chamber of Secrets – Dobby levitating the cake at Privet Drive 44.Prisoner of Azkaban – The Dementor attack in the Hogwarts Express 43. Chamber of Secrets – Harry and Ron in the Flying Ford Anglia 42.Prisoner of Azkaban – The Knight Bus at Privet Drive 41. Prisoner of Azkaban – Sirius Black and Harry bonding at Hogwarts 40. Goblet of Fire – The Quidditch World Cup 39. Deathly Hallows: Part 1 – Ron and Harry’s fight in the tent 38. Chamber of Secrets – The Cornish Pixies attach Defence Against the Dark Arts class 37.Prisoner of Azkaban – Remus Lupin turns into a werewolf 36.Order of the Phoenix – Harry’s first kiss with Cho Chang in the Room of Requirement 35. Philosopher’s/Sorcerer’s Stone – Harry’s left with the Dursleys at Privet Drive 34. Goblet of Fire – The Yule Ball, and Hermione growing up 33. Prisoner of Azkaban – Aunt Marge’s Comeuppence via Harry 32.Philosopher’s/Sorcerer’s Stone – Owls deliver Harry’s Hogwarts letter at Privet Drive 31.Goblet of Fire – Harry returns with Cedric Diggory’s dead body 30. Order of the Phoenix – Harry’s detention with Dolores Umbridge 29. Half-Blood Prince – The Millennium Bridge is destroyed 28. Half-Blood Prince – Dumbledore drinks to uncover a Horcrux 27.Deathly Hallows: Part 1 – The Seven Harrys 26. Deathly Hallows: Part 1 – The Tale of the Three Brothers 25. Philosopher’s/Sorcerer’s Stone – The Chess Room and Match 24. Philosopher’s/Sorcerer’s Stone – Harry’s trip to Ollivander’s Wand Shop 23.Goblet of Fire – The Second Task in the lake 22.Order of the Phoenix – Dementors attack Harry and Dudley in the underpass 21. Prisoner of Azkaban – Harry conjures his Patronus in the Forbidden Forest 20. Half-Blood Prince – Ron under the love potion 19.Chamber of Secrets – Harry and Ron turn into Goyle and Crabbe via Polyjuice Potion 18.Deathly Hallows: Part 1 – Ron destroys the locket Horcrux 17. Goblet of Fire – Voldemort is resurrected 16. Goblet of Fire – The Arrival of the Beauxbatons girls 15. Deathly Hallows: Part 1 – Bathida Bagshot’s revelation at Godric’s Hollow 14. Philosopher’s/Sorcerer’s Stone – The Sorting ceremony at the opening feast 13. Prisoner of Azkaban – Meeting Buckbeak in Care of Magical Creatures class 12. Order of the Phoenix – Sirius Black’s death 11. Goblet of Fire – Harry and Voldemort’s duel in the graveyard 10. Philosopher’s/Sorcerer’s Stone – Hagrid tells Harry he’s a wizard 9.Philosopher’s/Sorcerer’s Stone – First Quidditch match 8. Philosopher’s/Sorcerer’s Stone – The journey to Platform 9 3/4 7. Order of the Phoenix – Fred and George’s Fireworks’ extravaganza 6. Prisoner of Azkaban – Hermione punches Draco Malfoy 5. Philosopher’s/Sorcerer’s Stone – Harry enters Diagon Alley for the first time 4.Order of the Phoenix – Dumbledore and Voldemort’s duel in the Ministry 3. Deathly Hallows: Part 1 – Dobby’s sacrifice and death 2. Half-Blood Prince – Snape kills Dumbledore 1. Philosopher’s/Sorcerer’s Stone – The first look at Hogwarts School of Witchcraft and Wizardry