Episode titles are named after art pieces.
When the series began, Bay (Vanessa Marano) and Daphne (Katie Leclerc) were both supposed to be 15 (consequent to the show's premise, the characters share the same birthday). In reality Marano was 18 and Leclerc was 24, but their birthdays are less than a week apart.
Many of the actors who played hearing characters in the show did not know American Sign Language before receiving the part.
The names Bay and Daphne are interchangeable - Bay is the type of tree that the mythological Daphne turned into while she was being chased by the God Apollo. Both are consequently common names for laurel.
Even though Meredith Baxter plays Lea Thompson's mother she's only 14 years older than her. Both women have also played Michael J Fox's mother, Meredith Baxter in Family Ties and Lea Thompson in the Back to the Future Trilogy.