TV ratings experts have compiled a list of the 50 most influential TV programmes across the world from the past half century.
The year-by-year list features stand-out shows that have changed TV, from drama to comedy and reality shows to cartoons.
Watch's MasterChef Australia is listed as the most influential show for 2009. Australia took the original British series and turned it into a cooking talent show which now has versions in 35 countries.
The list also features the likes of Homeland (2011), The Voice (2010), Friends (1994) and Star Trek (1966).
See the full list on Metro.