This episode is rated TV-14-DL.
Raj's RKoothrappali1 exists on YouTube.com, but it doesn't seem to be legit.
Raj: (talking about professor Tupperman's memorial) I'm here to pay my respects to Professor Tupperware or whatever his name is.
Original International Air Dates:
Canada: April 4, 2013 on CTV
Finland: January 1, 2014 on Sub
Sheldon presents the (African-American) HR Director a box set of Roots on DVD, and doesn't understand why it is offensive.
Roots was a television miniseries in the 1970's that was based on a novel by Alex Haley, which depicted the history of an African-American family, beginning with the story of Kunta Kinte, a slave in the South.