I would like to comment that I used to read episode summaries before watching, back in the days of Columbia House VHS tapes. It makes a certain amount of sense for an episodic show like TNG.
Babylon 5 and Farscape don't work that way. They both have some episodic shows early on while the world is established, but both, especially B5, move away from that as the show continues. Each episode does not necessarily leave the playing board the same way it was found. Things change, sometimes drastically, in the course of a single episode. If you read spoilers for such an episode, you will esssentially be ruining the surprises not only for that episode but for the episodes to come as well.