For the second time, a character played by Lucas Grabeel weighs his interest in both baseball and the arts, and is criticized for the latter.
Meredith Baxter plays the mom to Lea Thompson's character. Both are most famous for their respective roles playing Michael J. Fox'smother.
In Season 2, Bay crushes on a guy with the same progressive/intermittent hearing loss as Katie Leclerc.
"Ecce Mono" shows an Alternate Reality with elements borrowed from Back to the Future Part II, including a Lea Thompson character in a loveless marriage. There's also a scene where Daphne and Bay look at Regina's grave with flashlights, which is shot almost exactly like a similar scene in BTTF 2.
In one episode, Toby tells Bay to "get your head in the game," which is a song from High School Musical. According to Lucas Grabeel's Twitter, it was a coincidence.
In "Dance Me to the End of Love" Travis wants to learn to dance, and Toby sarcastically asks if he wants to win Dancing With the Stars. Angelo and Melody end up giving him a dance lesson, and both Gilles Marini and Marlee Matlin are both past contestants on Dancing With the Stars.
This isn't the first time Bay's been curious about her biological father.
Layne Abeley was actually switched at birth! The two series also have... odd similarities, Bay being an artist and rich, living in a big house. Letting Daphne and her mom stay with them like Massie's family has Claire and her family stay with them.