Television episodes set in Illinois

"Sanguinarium" is the sixth episode of the fourth season of the American science fiction television series The X-Files. "Sanguinarium" was written by newcomers Vivian and Valerie Mayhew and directed by Kim Manners, and is a "Monster-of-the-Week" story, a stand-alone plot which is unconnected to the series' wider mythology. It first aired in the United States on November 10, 1996 on the Fox network, earning a Nielsen rating of 11.1 and being seen by 19.85 million viewers upon its initial broadcast.

episode of The X-Files (S5 E19)

episode of Better Call Saul (S1 E3)

episode of Better Call Saul (S1 E4)

episode of Supernatural (S2 E20)

episode of The X-Files (S7 E7)