I watched the first episode on 2014-August-15

The Fall of Shiganshina

• ✔ 1 — To You, in 2000 Years
• ✔ 2 — That Day

Humanity's Comeback

• ✔ 3 — A Dim Light Amid Despair
• ✔ 4 — The Night of the Closing Ceremony

The Struggle for Trost

• ✔ 5 — First Battle
• ✔ 6 — The World the Girl Saw
• ✔ 7 — Small Blade
• ✔ 8 — I Can Hear His Heartbeat
• ✔ 9 — Whereabouts of His Left Arm
• ✔ 10 — Response
• ✔ 11 — Idol
• ✔ 12 — Wound
• ✔ 13 — Primal Desire
• ✔ 13.5 — Since That Day

Eve of the Counterattack

• ✔ 14 — Can't Look Into His Eyes Yet
• ✔ 15 — Special Operations Squad
• ✔ 16 — What Needs to be Done Now

57th Expedition Beyond the Walls

• ✔ 17 — Female Titan
• ✔ 18 — Forest of Giant Trees
• ✔ 19 — Bite
• ✔ 20 — Erwin Smith
• ✔ 21 — Crushing Blow
• ✔ 22 — The Defeated

Raid on Stohess District

• ✔ 23 — Smile
• ✔ 24 — Mercy
• ✔ 25 — Wall

OVA Episodes

• ✔ Ilse's Notebook: Memoirs of a Recon Corps Member
• ✔ The Sudden Visitor: The Torturous Curse of Youth
• ✔ Distress
• ✔ A Choice with No Regrets (Pt. 1)
• A Choice with No Regrets (Pt. 2)