1: Is Sheldon a Time Traveler?

false

2: Penny and Leonard's Secret Baby

false

3: Raj's Hidden Double Life

false

4: Howard's Lost Brother

false

5: Bernadette's Mysterious Past

false

6: The True Identity of Mrs. Wolowitz

false

7: Amy's Long-Lost Sister

false

8: The Big Bang Theory Crossover

false

9: The Final Episode Twist

false

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