Firstly, im not a troll. Secondly, I actually find your statement quite insensitive. People being murdered constitutes quite a lot more than a "little skirmish", and has nothing to do with my post. Take it to a different thread please.
Actually, first time you said it was an opinion..
OP: should i watch B5
You: No, its shit..
That was your opinion. But to then several posts later you post it again.., THAT was trolling.
Alright, so this form of B5 is not your cup of tea or slice of semtex.., that does not dismiss the series HAS got a cult following, despite the first season's reputation.
Look at the remake of "V", showing that despite the glitter and glamour of the CGI, thats what you can call "SHIT !"
But no matter what people's feelings of the first season, there are key stories in the first seasons that helps you understand later season episodes like season 3 and 4.
Also as Crom said, the TV movies also add a touch to the series too, of which, each telemovie has its own slot in the TV series timeline for story chronology.
In the beginning: (Set before the Tv series, but has an opening and closing scene's from Season 4)
The Gathering (The initial Pilot 1x00, Pre series).
ThirdSpace: Set after the Vorlon/Shadow war.
River of souls: Season 5.
A call to arms: After season 5, Allies of the shadows try to use remnant technology left behind against the alliance, setting the ground for the TV series "Crusade".
This gives you a ROUGH idea of the viewing order of the films and series, with regards to how the story line pans out.
2245–48 • In the Beginning (1st film)*
2256 • Babylon 5 station commissioned
2257 • The Gathering (Pilot)
2258 • Signs and Portents (Season 1)
2259 • The Coming of Shadows (Season 2)
2260 • Point of No Return (Season 3)
2261 • No Surrender, No Retreat (Season 4)**
2261 • Thirdspace (2nd film)***
2262 • The Wheel of Fire (Season 5)†
2263 • The River of Souls (3rd film)
2265 • The Legend of the Rangers (5th film)
2266 • A Call to Arms (4th film)
2267 • Crusade (spin-off series)
2271 • The Lost Tales: Voices in the Dark
2278 • In the Beginning (1st film)*
But this can also be used to try to see what episodes/films fall in what order.
http://www.midwinter.com/lurk/countries/master/eplist.html