
Dive, Dive, Dive (BBC4, 9pm) Series looking at submarines. Hosted by Robert Llewellyn.
The Boats That Built Britain (BBC4, 8.30pm) Tom Cunliffe charts the history of British seafaring.
Luther (BBC1, 9pm) Crime drama about a detective battling his personal demons. Stars Idris Elba & Paul McGann.
Children's Emergency (BBC1, 10.45pm) Eight-part series about the Children's Acute Transport Service.
First Time Voters' Question Time (BBC3, 8pm) Special election debate special. Hosted by Dermot O'Leary.
Strike Back (Sky1, 9pm) Action drama based on the novel by former-SAS soldier Chris Ryan. Stars Richard Armitage & Andrew Lincoln.
Timothy Spall Somewhere At Sea (BBC4, 10pm) The actor and his wife sail around the UK.
Justified (FiveUSA, 10pm) US drama series. Stars Timothy Oliphant.
Channel 4's Alternative Election Night (Channel 4, 9pm) Irreverant take on the election night. Hosted by David Mitchell, Lauren Laverne, Charlie Brooker & Jimmy Carr.
Autism, Disco & Me (BBC3, 9pm) Documentary about a family with three autistic kids.
Nation On Film: VE Day (BBC2, 8.30pm) Documentary about life during WWII, using footage shot by both amateurs and professionals. Narrated by David Suchet.