The suggested timeline order, as closely as possible, trying to avoid spoilers, given that some episodes/specials are chronologically mixed.
This list is based largely on an amalgam of the responses in the following thread:
https://scifi.stackexchange.com/questions/10009/what-order-should-the-babylon-5-movies-and-series-be-watched-in/21381#21381?newreg=d0bddc65851a4a7fa4c7f0f43045d129
Copied from the following list, but with the specials listed as specials (AKA Season 0) as opposed to movies:
https://trakt.tv/users/b1ubb/lists/babylon-5-timeline?sort=rank,asc
Just putting this together for personal tracking use, as sourced from this post: https://scifi.stackexchange.com/a/241222
Make sure to view by Rank for intended order.
Original description from post: The Intended Order for all TV Episodes and Movies as listed below is the order that JMS intended the show to be viewed in for full dramatic impact. This viewing order was taken from JMS's interviews, notes, and discussions. This is not a chronological order of events, and not everything is meant to make sense at first as some episodes have flashbacks and visions of things. This order (including the very similar Lurker's Guide) is popular among devoted fans.
Source 1: https://babylon5.fandom.com/wiki/Viewing_Order
Source 2: http://www.b5tv.com/showthread.php?t=11675
Note: For the Crusade spin-off the Chronological Order option is listed below as it is enjoyable and popular among devoted fans without continuity issues or jarring inconsistencies. This Crusade order is from the Babylon 5 Historical Database as authorized by JMS, with one adjustment to correct a continuity issue in "Ruling From the Tomb".
The Hugo Award for Best Dramatic Presentation is given each year for theatrical films, television episodes, or other dramatized works related to science fiction or fantasy released in the previous calendar year. This list contains winners and nominees, covering both Long- and Short-Form categories as well as retro Hugos, but (obviously) does not contain nominees who are not (or cannot be) listed on Trakt, including (but not limited to):
1939 (R): "The War of the Worlds" by the Mercury Theatre on the Air (radio play)
1939 (R): "Around the World in Eighty Days" by the Mercury Theatre on the Air (radio play)
1939 (R): "A Christmas Carol" by the Campbell Soup Playhouse (radio play)
1939 (R): "Dracula" by the Mercury Theatre on the Air (radio play)
1939 (R): R.U.R. (stage play)
1941 (R, SF): Adventures of Superman: "The Baby from Krypton" (radio play)
1960: "Murder and the Android", NBC Sunday Showcase Imissing from Trakt)
1970: News Coverage of Apollo 13
1971: "Blows Against the Empire" by Paul Kantner & Jefferson Starship (album)
1971: "Don't Crush That Dwarf, Hand Me the Pliers" by Firesign Theatre (comedy album)
1972: "I Think We're All Bozos on the Bus" by Firesign Theatre (comedy album)
1976: The Capture (graphic novel)
1978: Blood!: The Life & Future Times of Jack the Ripper (audiobook)
1979: The Hitchhiker's Guide to the Galaxy (radio play)
2004 (SF): "Gollum's Acceptance Speech", 2004 MTV Movie Awards
2006 (SF): Lucas Back in Anger (stage play)
2007 (SF): Prix Victor Hugo Awards Ceremony
2009 (LF): METAtropolis (multimedia stories)
2012 (SF): The Drink Tank's Hugo Acceptance Speech
2017 (SF): "Splendor & Misery" by clipping (album)
(R) is Retro Hugo
(SF) is Short Form
Doesnt find it in JustWatch (Most likely Swedish JustWatch)
Highly-rated, science fiction films and TV shows.
Movies i own on Dvd or Blue-ray
Movies i have Seen
Not 100% chronological but rather the "best watching order", since "In the beginning" could have more than one place in the timeline (a 2277 Londo tells of events occuring in 2245-2248, it also spoils stuff that happens at the end of 2261 aka Season 4, which is why I put it after Season 4 where it was intended to be)
I did not include anything Crusade related, as the series was canceled before the story could be finished.
Babylon 5 Suggested Order
by canadrian