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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