My first recommendation will be for the Firefly/Serenity Series. There are 15 episodes total, the first and last 'episodes' can be considered movies since they are over 90 minutes.
This sci-fi series is about a rag-tag group on a transport space ship that picks up (normally illegal) jobs from different planets. All transactions go bad and mostly end up in gun fights. Lots of action and witty comedy in this one. I especially recommend this to Star Trek fans or anyone looking for a good sci-fi shootout.
Description from Wikipedia:
"The series is set in the year 2517, after the arrival of humans in a new star system, and follows the adventures of the renegade crew of Serenity, a "Firefly-class" spaceship. The ensemble cast portrays the nine characters who live on Serenity. Whedon pitched the show as "nine people looking into the blackness of space and seeing nine different things". The show explores the lives of some people who fought on the losing side of a civil war and others who now make a living on the outskirts of society, as part of the pioneer culture that exists on the fringes of their star system. In addition, it is a future where the only two surviving superpowers, the United States and China, fused to form the central federal government, called the Alliance, resulting in the fusion of the two cultures. According to Whedon's vision, 'nothing will change in the future: technology will advance, but we will still have the same political, moral, and ethical problems as today'."