Nowadays most series requires one to watch from the beginning. Many People wait until the series comes out in its entirety and watch marathon style.
I did that with Breaking Bad. Back when B5 came out with it was a new concept. Most shows could be watched as one offs.
If B5 is a 5 season novel as many have said, I suppose the only way to watch it properly is from first to last episode.
I will consider doing that....perhaps in the winter.
I’m a big fan of B5, but will admit the first season (although it sets things up) drags a bit, and has some disconnects. The 5th and final season struggles since most of the big themes have been wrapped up in 4. Seasons 2, 3, and 4 are very good.