The Big Bang Theory - Season 8 Episode 22

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    8x22 | The Graduation Transmission

    April 24,2015, 02:00AM

    Wolowitz questions his engineering abilities when he and Sheldon can’t get a toy drone to fly. Meanwhile, a cancelled flight nearly prevents Leonard from giving the commencement address at his former high school, and Raj pits his parents against each other when his father cuts him off financially.