Grey's Anatomy: Sky Living, 10pm
A highly anticipated-episode finally airs tonight as the mystery of Derek's whereabouts is finally solved.
On his way to the airport, Derek (Patrick Dempsey) witnesses an horrific car accident and springs into action to save lives.
Ballot Monkeys: Channel 4, 10pm
It's the series finale as the last day of campaigning on the election battle buses arrives. Have the parties got any ammunition left, and who has done enough to win?
Ben Miller, Sarah Hadland and Hugh Dennis are among the stars of Andy Hamilton and Guy Jenkin's topical political comedy.
What to Read Next
Charlie Brooker's Election Wipe: BBC Two, 9pm
There are only a few hours left until election day begins, and tonight Charlie Brooker offers a satirical look at the General Election campaign.
Joined by his usual commentators, he mixes the big stories with the funniest and strangest moments along the way to provide an irreverent look at the past few weeks in politics.
Murder in Successville: BBC Three, 10pm
In the first episode of this new detective comedy starring Tom Davis, Made in Chelsea star Jamie Laing assists with an investigation into the death of local restaurateur Bruno Tonioli.
The lovable DI Sleet (Davis) enlists the help of a genuine famous sidekick to solve the latest high-profile murder in Successville - a surreal place with a rising celebrity homicide count.
