W5 is a Canadian news magazine television program produced by CTV News. The program is broadcast Saturday nights at 7 p.m. on the CTV Television Network, with repeat broadcasts at later times on CTV as well as co-owned channels CTV 2, CTV News Channel, and Investigation Discovery. The program also airs in a radio simulcast on CFRB (1010) in Toronto. The title refers to the Five Ws of journalism: Who, What, Where, When and Why? It is the longest-running newsmagazine/documentary program in North America and the most-watched program of its type in Canada. History W5 is the longest-running current affairs/newsmagazine program in North America and the third longest-running Canadian television program. It was launched as W5 on September 11, 1966, just after the demise of CBC Television's This Hour Has Seven Days, at a time when the CTV network was on the brink of bankruptcy. The program's magazine format is considered an inspiration for a number of similar programs, including the American program 60 Minutes which premiered two years later. The program's first executive producer and host was Peter Reilly. He quit only a few weeks into the first season of W5, in a dispute with John Bassett, who owned the CTV network's biggest station, CFTO-TV in Toronto. Reilly went on to become first host of the CBC's later current affairs offering, The Fifth Estate. Peter Rehak was executive producer through the 1980s and 1990s. Robert Hurst oversaw a revamping of the program look in the fall of 1995. Fiona Conway became Executive Producer but left for ABC News in 1998. Fiona was succeeded by Senior producer Ian McLeod and after he left Malcolm Fox became the Executive Producer from September 2000 until September 2009. Anton Koschany served as Executive Producer from 2009-2021, during which time the program moved into HD and produced an expanded number of episodes per season. He was succeeded by current Executive Producer Derek Miller. The program's first regular host was Ken Cavanagh, with reports from CTV National News journalists such as Doug Johnson and Frank Drea, who later became a Progressive Conservative Member of Provincial Parliament in Ontario and Trina McQueen, later president of CTV. During the 1970s, Henry Champ was a long-time host, along with Ken Lefolii and Tom Gould. Helen Hutchinson, who also hosted during the 1970s (concurrent with her tenure as co-host of the morning show Canada AM), was one of the