Adding up the total running times of all Star Trek TV series and movies, we are able to learn several interesting things…

The Original Series makes up just 12% of the Star Trek franchise with an approximate total running time of 4,000 minutes.

'Most' of Star Trek is Star Trek: The Next Generation, with an approximate total running time of 7,832 minutes, and a total percentage of 25% if you include it’s movies.

Star Trek: Deep Space Nine and Star Trek: Voyager are the other heavy hitters, with 24% and 23% of the franchise respectively.

The Next Generation Era makes up a total of 72% of the entire Star Trek franchise, compared with a total of 15% from The TOS Era.

The smallest single contribution comes from the JJ Abrams movies, with just 259 minutes of content.

Star Trek: Enterprise provides 13% of the franchise, compared to 12% from TOS.

Placed in order of content, from most to least, the various Star Trek series and movies stand as follows:

Star Trek: The Next Generation - 24%

Star Trek: Deep Space Nine - 24%

Star Trek: Voyager - 23%

Star Trek: Enterprise - 13%

Star Trek: The Original Series - 12%

TOS Movies - 2%

TNG Movies - 1%

JJ Abrams Reboot - 1%

Or if we divide them into ‘eras’, it becomes this:

"Cardassians love to speak. Garak loves to speak, Enabran Tain loves to speak. Dukat loves to speak - very slowly - and certainly Marritza loves to speak."

- Ira Behr, executive producer and writer Star Trek Deep Space Nine Companion