Your wish is my command, so here is proof of how much one woman can waffle about Freudian symbols and gratuitous shirtlessness within the space of five years. (Answer: a quite startling amount.)
Merlin Reviews by
Season 1 (I started rather late, as you can see)
1x11: The Labyrinth of Gedref
1x12: To Kill the King
1x13: Le Morte d'Arthur
Season 2
2x01: The Curse of Cornelius Sigan
2x02: The Once and Future Queen
2x03: The Nightmare Begins
2x04: Lancelot and Guinevere
2x05: Beauty and the Beast (Part 1) = no review for this one, sorry!
2x06: Beauty and the Beast (Part 2)
2x07: The Witchfinder
2x08: The Sins of the Father
2x09: The Lady of the Lake
2x10: Sweet Dreams
2x11: The Witch's Quickening
2x12: The Fires of Idirsholas
2x13: The Last Dragonlord
Season 3
3x01: The Tears of Uther Pendragon (Part 1)
3x02: The Tears of Uther Pendragon (Part 2)
3x03: Goblin's Gold
3x04: Gwaine
3x05: The Crystal Cave
3x06: The Changeling
3x07: The Castle of Fyrien
3x08: The Eye of the Phoenix
3x09: Love in the Time of Dragons
3x10: Queen of Hearts
3x11: The Sorcerer's Shadow
3x12: The Coming of Arthur (Part 1)
3x13: The Coming of Arthur (Part 2)
Season 4
4x01: The Darkest Hour (Part 1)
4x02: The Darkest Hour (Part 2)
4x03: The Wicked Day
4x04: Aithusa
4x05: His Father's Son
4x06: A Servant of Two Masters
4x07: The Secret Sharer
4x08: Lamia
4x09: Lancelot du Lac
4x10: A Herald of the New Age
4x11: The Hunter's Heart
4x12: The Sword in the Stone (Part 1)
4x13: The Sword in the Stone (Part 2)
Season 5
5x01: Arthur's Bane (Part 1)
5x02: Arthur's Bane (Part 2)
5x03: The Death Song of Uther Pendragon
5x04: Another's Sorrow
5x05: The Disir
5x06: The Dark Tower
5x07: A Lesson in Vengeance
5x08: The Hollow Queen
5x09: With All My Heart
5x10: The Kindness of Strangers
5x11: The Drawing of the Dark
5x12: The Diamond of the Day (Part 1)
5x13: The Diamond of the Day (Part 2)
Icons
Merlin mini-icons, season 1
Merlin mini-icons, season 3 update
I shall also add a link to this post in the sidebar of my LJ so that people can find it easily in the future. Hope someone finds this helpful!