Television formats portraying ordinary people in unscripted situations are almost as old as the television medium itself. Producer-host Allen Funt's Candid Camera, in which unsuspecting people were confronted with funny, unusual situations and filmed with hidden cameras, first aired in 1948, and is often seen as a prototype of reality television programming.[2][3]

First broadcast in the United Kingdom in 1964, the Granada Television documentary Seven Up!, broadcast interviews with a dozen ordinary 7-year-olds from a broad cross-section of society and inquired about their reactions to everyday life. Every seven years, a film documented the life of the same individuals during the intervening period, titled the Up Series, episodes include "7 Plus Seven", "21 Up", etc.; it is still ongoing. The program was structured as a series of interviews with no element of plot. However, it did have the then-new effect of turning ordinary people into celebrities. The first reality show in the modern sense may have been the series The American Sportsman, which ran from 1965 to 1986 on ABC in the United States.[6][7] A typical episode featured one or more celebrities, and sometimes their family members, being accompanied by a camera crew on an outdoor adventure, such as hunting, fishing, hiking, scuba diving, rock climbing, wildlife photography, horseback riding, race car driving, and the like, with most of the resulting action and dialogue being unscripted, except for the narration.