Grampy Can Ya Hear Me/References< Grampy Can Ya Hear Me
- The title of the episode is a reference to the Academy Award-nominated 1983 song "Papa, Can You Hear Me?", performed by Barbra Streisand.
- Rick and Morty's Szechuan Sauce is held by Maggie in the opening.
- Agnes and Principal Skinner watch Game of Thrones at the end of the episode.
- At the Springfield Planetarium, a poster asking to "Bring back Futurama" is seen.
- During the planetarium show, "America the Beautiful" by Samuel A. Ward plays.
- In the car, "In the Mood" by Wingy Manone, Andy Razaf and Joe Garland plays.
- Jasper Beardsley and old people sing "Happy Birthday to You" to Abe.
- When Grampa realises he can hear, "Ode to Joy" by Ludwig van Beethoven plays.
- The Chewbacco nicotine gum is a reference to Chewbacca from Star Wars.
- Brutus Buckeye, the mascot for Ohio State University, is seen.
- Casket City's slogan, "Think inside the box", is a pun on the expression "think outside the box".
- The ghosts of Tracey Ullman Homer and Bart appear in the title screen. ("Treehouse of Horror XXV")
- The Russian soldiers invading the Simpson House is similar to the couch gag of "The Last Traction Hero".
- Homer applies his astronaut discount. ("Deep Space Homer")
- Lisa previously showed Nelson how to use the chalk contraption Bart is using. ("Lisa's Date with Density")
- Lisa has a nightmare of not becoming president due to being disqualified because of cheating on her paper. ("Bart to the Future")
- Gram-papa is wearing a shirt from The Grunions Ride. ("Kamp Krustier")
- The song "Nobody Knows Hans Moleman" is a parody of "Everyone Loves Ned Flanders". ("The Front")
- The Simpson family is reading a script, which is revealed to be the episode's.