I think B5 was the BEST SF series EVER.It had no continuity problems either because it was written to finish in a certain time and place unlike the never ending cash cow of the ST universe.
I'm sure Excalibur would have done the same if it hadn't been pulled by yet another bunch of stupid,woolly,lame brained suits that wouldn't recognise a high class SF series if it tripped them up saying please put me on the tv. Of course if programme schedulers could actually stop switching SF programmes about it might help.As soon a show gets put into another time slot or gets shifted earlier or later it's bound to lose viewers.
Have you seen how many SF tv progs have been axed recently?Replaced by what?Bluddy Big Brother!!! and little brother,sister,cousin,aunty and uncle reality show.