The Bunraku puppet theater of Japan uses puppeteers who are fully visible to the audience, often with three puppeteers controlling a single puppet.
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Many famous stand-up comedians started their careers performing in comedy clubs that required them to work for free or for very little pay in exchange for stage time.
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Many improv games, like "Whose Line Is It Anyway?", were originally developed in the 1950s and 60s, far earlier than their widespread television popularity.
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