hang out on rec.startrek.* and you'll catch on to the abbreviations
real fast:

TOS - The Origial Series, aka Classic Trek
TNG - The Next Generation
DS9 - Deep Space 9, not to be confused with JPL's DS1 or Deep Space 1
satellite
VOY - Voyager
ENT - Enterprise - currently on UPN, now cancelled
TAS - The Animated series. Cartoon spinnoff back in the 70s
B&B - Berman & Braga; Rick Berman & Brannon Braga, the producers.
STx where x is an arabic number that refers to the appropriate film
and the title is irrelevant. For example,
ST4 - The Voyage Home
ST - Star Trek
SW - Star Wars

True Trekkies/Trekkers/whatever know instinctively which film
is being discussed without the trivialities of "titles".

Hey, don't blame me! I never sat thru the last 2 ST films nor the
SW1(4) or SW2(5) in the theatres.

why SW1(4)? Because it was the 4th film made but according to
Lucas, the 1st film in the first trilogy. Not to be confused with
SW4, which was the first film of the middle trilogy which was the
first SW film made back in 1977.

Clear?

sorta like learning to do holds....

(*chortle*)