To protect the secret of the ending, a fake script was leaked to the press. In it, after Bob gets hit by a golf ball, he dies, goes to Heaven and meets God played by George Burns.
According to Suzanne Pleshette, she decided to sneak out during the wrap party out of respect for the cast (most notably, Mary Frann).
The final episode ran for 5 minutes longer than the typical episode. Many CBS affiliates did not get the message and cut to a commercial after 30 minutes. Viewers demanded the episode to be rerun and it was on the following week.
Baby Stephanie's announcement, "I'm baaaaack!" mimics the line of another adorable blond tot, Carol Anne Freeling, from Poltergeist II: The Other Side (1986). Heather O'Rourke's performance and line reading of the words "They're baaaack" were so iconic, the same words or variations pronounced in a similar sing-song has since become part of pop culture lingo.