Question: game of thrones episodes you have to watch?
Answer: Season 1. Recommended viewing: 1.01 ("Winter is Coming"), 1.09 ("Baelor"), 1.10 ("Fire and Blood") ... 
Season 2. Recommended viewing: 2.02 ("The Night Lands"), 2.03 ("What Is Dead May Never Die"), 2.09 ("Blackwater"), 2.10 ("Valar Morghulis") ... 
Season 3. ... 
Season 4. ... 
Season 5. ... 
Season 6. ... 
Season 7.