Leela is left-handed, or at least writes with her left hand. Louise Jameson is right-handed, but chose to make Leela a left-handed writer in order to increase her awkwardness at this task.
The debut of K9.
This marks the return of the traditional white console room, albeit with smaller & thinner roundels.
In the Titan Base and Bi-Al Foundation sets, all signage is written phonetically in what the script calls "Finglish" - thus, for example, signs read "IMURJINSEE EGSIT" and "ISOLAYSHUN WARD" instead of "Emergency Exit" and "Isolation Ward".