- The title is based on the song "Unchain My Heart" by Ray Charles (and covered by the Rivingtons, Trini Lopez, Joe Cocker, the Bobs, George Williams, and others) or possibly the song "Un-Break My Heart" by Toni Braxton.
- Blue Stank is introduced in this episode.
- Running Gag:
- Howard criticizing Randy's counting.
- 30 Seconds to Math returns for the first time in season 2.
- Howard's hairstyle resembles that of the Super Saiyan from the anime Dragon Ball.
- Levander is voiced by Danny Pudi and Randy (of course) by Ben Schwartz; since 2017 the two have played the Duck brothers Huey and Dewey, respectively, on Disney's re-booted DuckTales.
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