1978 is a year in the 20th century.
- March: Young Richard Langly begins avidly watching The Cap'n Toby Show. (TLG: "The Cap'n Toby Show")
- April 4: Henry Flanken, after using a jinniyah to catapult his net worth to $30 Million, is admitted to the Gateway Memorial Hospital with an extreme priapic condition, caused by the jinniyah. He dies soon afterwards and his cause of death is listed as chronic morbid tumescence. His possessions, including the jinniyah later known as "Jenn," are put away in a storage facility in Creve Coeur, Missouri. (TXF: "Je Souhaite")
- June 13: Morris Fletcher gets married to Joanne on a rainy day. She later gets mad at him at the wedding reception, for making a joke about her weight. (TXF: "Dreamland II")
- Thirteen year old Lucy Householder is discovered on the side of the road after being held captive by Carl Wade for five years. She reenters society, however is still scarred from her imprisonment. (TXF: "Oubliette")
- Dr. Stroman, a licensed physician, dies in Fall Church, Virginia. (TXF: "Wetwired")
- Pinker Rawls is arrested for a small crime. It is his earliest known offense. (TXF: "Trevor")
- Rudolph Hayes dies in a car accident. (TXF: "Release")