TV Sitcoms

Which "Big Bang Theory" character's last name was not revealed once in the show's first 8 seasons?

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Which "Big Bang Theory" character's last name was not revealed once in the show's first 8 seasons?
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During the "iCarly" episode "iWant A World Record", who breaks a world record?
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What year did the final episode of the TV show, "Cheers", air?
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Complete the name of the TV series, "It's Always Sunny in ___"?
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What network was "Family Ties" originally on?
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On "Three's Company", who sang live at Jack's Bistro?
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Who played the lead in "Barney Miller"?
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On "Seinfeld", what is the name of the diner Elaine eats at in the Bizarro episode?
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