One of the saddest endings of a series....
... I've seen.
True that sitcoms usually love a melancholy ending (Friends, The Nanny, etc) but Tom leaving Linda alone in the house in the dark always brings me down.
I know that there were rumors of an intended 4th series that was scuttled due to Dreyfus short stateside visit and Burkes seeming ambivalence at on screen life but even a one off special would be enough to give us hope that these two outcasts find their way back to each other.