Taxi - Season 5 Episode 12
Get Me Through the Holidays

Alexs ex-wife, Phyllis, depressed and lonely, comes to see Alex, who takes pity on her and includes her in his holiday plans. This turns ugly, when she manages to bring the whole gang down with her self-pity. Her Christmas present to Alex is that she wont bug him for New Years, which turns out to be the best gift she could give him.