Like many other current affairs shows in the 70s, Tonight had a short-lived existence: in 1975 the newly-elected National government was determined to streamline television's high number of news and current affairs shows. However, the show made its mark with its infamous interview between PM Rob Muldoon and Simon (future Royal PR man) Walker, in which Walker has the temerity to ask questions not on Muldoon's sheet: "I will not have some smart alec interviewer changing the rules half way through." Tonight did well to survive two years before getting axed.