- As with "Hot Water" before, this episode was intended to serve as a series finale in case the show was canceled.
- "The Hum" is a real claimed phenomenon.[1]

- * Bullock owns a Chevrolet Camaro IROC-Z/28.[2]
- His license plate reads "Luv 2 69", a sexual reference.
- Memphis Stormfront's real name is Toledo Tornado. He changed it to hide the fact that he's Italian.
- A newspaper has an article about Langley's first resident, a caveman from 20,000 years ago named "Skeletonius H. Boneman."
- Memphis Stormfront's predecessor Dickey Dobbins is mentioned; he previously appeared in "Anchorfran".
- Steve's glimpse of the future is not unlike the plot device of the television series FlashForward, in which Seth MacFarlane appeared in 2 episodes.
- Mayor James A. Garfield supports The Langley Falls Bazooka Sharks, who are nicknamed "Zooks."
- Raymond has a Beetman arcade game in his office.
- He also calls himself as rich as Topham Hatt, the Fat Controller from the Thomas the Tank Engine franchise.
- The song "Cow Drive" is based on "Rawhide".
- The song that has played when Avery Bullock drives at a roundabout is Poison's "Unskinny Bop".
- Stan's SUV license plate reads AD 4EVA.

Previous Episode's Notes /// Echoes's Notes \\\ Next Episode's Notes
| << Season 16 | American Dad Season 17 | Season 18 >> | ||||||
| #01 | Langley Dollar Listings | #09 | The Curious Case of the Old Hole | #16 | I Heard You Wanna Buy Some Speakers | |||
| #02 | Dressed Down | #10 | Gold Top Nuts | #17 | Hayley Was a Girl Scout? | |||
| #03 | The Book of Fischer | #11 | The Three Fs | #18 | Please Please Jeff | |||
| #04 | A Roger Story | #12 | Smooshed: A Love Story | #19 | Jambalaya | |||
| #05 | Epic Powder Dump | #13 | The Fast and the Spurious | #20 | Gernot & Strudel | |||
| #06 | American Dad Graffito | #14 | A League of His Own | #21 | Echoes | |||
| #07 | Beyond the Alcove | #15 | You Are Here | #22 | The Grounch | |||
| #08 | A Song of Knives and Fire |
| ||||||