At JMS' GEnie (1993/1994) I only found these:
[Nov 25, 1993: JMS about upcoming season one]
"I'd say that n'grath would count as a non-humanoid alien, yes?
(Just keeping an eye on my promises here....)"
Yes. We confirm that one.
[Aug 19, 1994: JMS about season one]
"I think that the point has been made...and the promise kept.
I think we've made a little history with this show...
had an effect on how SF Television will be done henceforth,
and brought a "screw 'em, let's go for broke" philosophy
back to the genre, ...
bad guys who do good things and good guys who do bad things,
bathrooms, fasten/zip and lessons in Centauri anatomy, ..."
Doing a very subjective citation <Hehe>
But I suspect: these aren't ment. ;-)
JMS: "Never Surrender Dreams"