The Sci-Fi genre can include many different things. I suspect most people would consider the following to be Sci-Fi. Of course what was once considered Sci-Fi might no longer be considered Sci-Fi ten years later
1.>Set onboard a starship. (i.e. Star Trek)
2.>Uses Time Travel (i.e. Doctor Who)
3.>Involves Travel to Alterante History's. (i.e. Sliders)
4.>Set in the Future[At time of writing] (i.e. Futurama)
5.>Invovles travel to other/from other planets. (i.e Stargate SG-1)
6.>Has Aliens in it. (i.e. Alien Nation)
7.>If set in present day uses technology we currently don't have.
8.>Superhuman powers (i.e X-Men, Heroes)
Of course it's not an exhastive lift, but using a broad definition it's basically a story were we as a viewer/reader have to suspend our disbelief of what we are viewing/reading.
Yes you can argue that we have to that to a certain extend for everything we read/view but there is a difference to doing it for saw a programme like "The West Wing" and one like Star Trek.
1.>Set onboard a starship. (i.e. Star Trek)
2.>Uses Time Travel (i.e. Doctor Who)
3.>Involves Travel to Alterante History's. (i.e. Sliders)
4.>Set in the Future[At time of writing] (i.e. Futurama)
5.>Invovles travel to other/from other planets. (i.e Stargate SG-1)
6.>Has Aliens in it. (i.e. Alien Nation)
7.>If set in present day uses technology we currently don't have.
8.>Superhuman powers (i.e X-Men, Heroes)
Of course it's not an exhastive lift, but using a broad definition it's basically a story were we as a viewer/reader have to suspend our disbelief of what we are viewing/reading.
Yes you can argue that we have to that to a certain extend for everything we read/view but there is a difference to doing it for saw a programme like "The West Wing" and one like Star Trek.