A Bit of a Do (1989)

Episode Overview

Title: The Dentists' Dinner Dance Plot: Laurence and Liz are reluctant to have Ted and Rita join the dance but feel obligated to send them an invitation. Meanwhile, Ted and Rita are equally unwilling to attend yet feel pressured to accept. As the evening unfolds, Liz reveals to Ted that she is expecting his baby, while Laurence and Rita begin to grasp the reality of their affair.