Jeremy Paxman will host Channel 4's 2015 General Election coverage.
The 64-year-old quit BBC 2's Newsnight in June after presenting the show for 25 years.
Paxman said: "There are new and interesting questions to ask about the way we choose our governments. This should be fun."
The chief creative officer of Channel 4, Jay Hunt, said: "Jeremy is a compelling presenter and makes truly unmissable TV for those big political moments. His sense of mischief and danger make him a fantastic fit with Four."