Star Trek

Star Trek , p.n. 1. any one of six different science fiction series and eleven movies sharing the same initial title in some fashion, starting with Star Trek in 1966, with the most recent work being the reboot movie of the same title (eleventh total in the entire series) in 2009.
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Addendum: After me, kiddies. Over 40 years of releases. 
Star Trek (“TOS”, The Original Series): 1966-1969. 
Star Trek: The Animated Series (“TAS”): 1973-1974 (Though the makers generally consider TAS non-canon, though they did release them on DVD a few years ago).
Star Trek: The Next Generation (“TNG”): 1987-1994. 
Star Trek: Deep Space Nine (“DS9”): 1993-1999. 
Star Trek: Voyager (“VOY”): 1994-2001. 
Star Trek: Enterprise (“ENT”): 2001-2005. 
Star Trek: The Motion Picture (1979)
Star Trek II: The Wrath of Khan (1982) 
Star Trek III: The Search For Spock (1984)
Star Trek IV: The Voyage Home (1986)
Star Trek V (1989) 
Star Trek VI: The Undiscovered Country (1991) 
Star Trek: Generations (1994) 
Star Trek: First Contact (1996) 
Star Trek: Insurrection (1998) 
Star Trek: Nemesis (2002) 
and Star Trek (2009).
Also expanded by a forest's worth of books, most of which have been declared non-canon by Paramount.
Addendum #2: Progenitor of many phrases and terms used in this jargon and many others, often thought of as one of the pillars of geek culture. Though often seen as nerdy even by some geeks, there is a huge following worldwide, spawning many conventions just on the franchise alone (see Trekkies), and even, like many other works in sci-fi, provided inspiration for technology of today (mobile phones and hyposprays). Star Trek is famous for sustaining one of the biggest divides and debates in fandom with the Star Wars franchise, encompassing a number of topics (such as who would win in a fight between Captain Kirk and Darth Vader) and spanning the entire thirty year span since the first Star Wars movie came out. Star Trek is also famous for the division among its own fans, usually falling along lines devoted to a specific series, with its own topics, such as the argument over the better captain or ship.
Addendum #3: Steering more towards gaming, there have been nearly 40 video games, three pinball games, 4 RPGs, three CCGs, and at least 10 board games (not counting a number of Vulcan Chess knockoffs) based on the franchise.