Tonight's must-watch tele:
Pick of the day:
Witnesses To War/The Act Of Killing RTE1, 10.35pm/Sky Atlantic, 10pm
For the past 18 months, Bryan Dobson and Donal Byrne have been recording a broadcast archive of Irish men and women who served with the British forces during the Second World War.
In this documentary, the remaining survivors recall their experiences of joining the British forces, their period of service during the war and their experiences afterwards.
The Irish survivors of this war are now few in number and very elderly -- seven of them contribute here.
They include Harry Callan, a native of Derry and merchant seaman taken prisoner in the South Atlantic, who was later forced to work on a submarine bunker near Bremen in horrendous conditions and Jim Redmond, a Dubliner who became a tail-gunner with the RAF. Meanwhile, Sky Atlantic's run of documentary screenings continues with a film that is amongst the most jaw-dropping you are every likely to see.
'The Act Of Killing' is a chilling and inventive documentary in which director Joshua Oppenheimer follows former members of Indonesian death squads as he challenges them to re-enact some of their many murders in the style of the cinematic genres they love.
Spending seven years filming with a small group of executioners, Oppenheimer asked the men to recreate the killings in whatever way, in order to try to understand why they killed.
The Sound Of Musicals, Channel 4, 9pm
This four-part documentary series goes behind the scenes to capture every aspect of the business of musicals, with the help of unprecedented access to a season in London's West End. The series explores how the teams sustain a hit. Tonight's curtain-raiser covers how to bring a classic tale to life on stage, with exclusive access to Sam Mendes' new re-imagining of 'Charlie and the Chocolate Factory'.
Happy Endings, E4, 9.30pm
Sad news for 'Happy Endings' fans: tonight's is the last ever episode of the US sitcom, it having been unceremoniously axed by its network, ABC, and denied a potential lifeline by TBS, which rescued the similarly under-appreciated Cougar Town after it met with a similar network fate. Here, Jane is given the daunting task of planning a wedding for Brooke, her perfect older sister.