Many of the episodes focused on only one of Bradbury's original works. However, Bradbury occasionally included elements from his other works. "Marionettes, Inc." featured Fantoccini, a character from "I Sing the Body Electric!". "Gotcha!" included an opening sequence taken from "The Laurel and Hardy Love Affair". Characters were renamed, and elements added to the original works to expand the story to 23–28 minutes or to better suit the television medium.
Each episode would begin with a shot of Bradbury in his office,[3] gazing over mementos of his life, which he states (in narrative) are used to spark ideas for stories. During the first season, Bradbury sometimes appeared on-screen in brief vignettes introducing the story. During the second season, Bradbury provided the opening narration with no specific embellishment concerning the episode. During the third season, a foreshortened version of the narration was used and Bradbury would add specific comments relevant to the episode presented. During the fourth and later seasons, a slightly shorter generic narration was used with no additional comments.