Mimicking the scene from Misery when the guys are walking down the railroad tracks, they sing this song which is the closing theme song for [Have Gun - Will Travel].

After singing the [Ballad of Paladin] on the railroad tracks, they guys start singing the theme to Family Ties (named Without Us).

This episode is split into three segments which are based on Stephen King movies, one of which is Misery.

This episode is split into three segments which are based on Stephen King movies, one of which is Stand By Me.

This episode is split into three segments which are based on Stephen King movies, one of which is The Shawshank Redemption.

Three of Stephen King's (hence the title, Three Kings) movies/books are featured in this episode.