This section looks at the Eurovision Song Contest from a presentational point of view - logos, graphics, captions, postcards, scoreboards etc. On this page we look at 2014-2017; the other pages in this section cover 1956-1966, 1967-1975, 1976-1982, 1983-1989, 1990-1996, 1997-2001, 2002-2005, 2006-2009, 2010-2013 and 2018.
If you're more interested in the music, click here for our reviews of the contests from 2014-2017.
The presenters of the 2014 contest, hosted from Copenhagen, were Lise Ronne, Nikolaj Koppel and Pilou Asbaek, with Lise mainly presenting from the green room. The logo featured a diamond along with this year's slogan '#JoinUs'.
The postcards showed the contestants using creative means to produce their country's flag. The UK's Molly Smitten-Downes was shown in a car park in White City directing a series of red Routemaster buses and Royal Mail vans, along with people in blue capes, to create the Union Flag.
For the first time this year, the BBC opened Radio 2 Eurovision for four days, a pop-up DAB station dedicated to the contest, which included recorded coverage of the first semi-final and live coverage of the second semi-final, both commentated by Ana Matronic. It also simulcast Radio 2's coverage of the final with Ken Bruce. BBC3's coverage of the semi-finals was presented by Scott Mills and Laura Whitmore, with Scott announcing the UK's points for the last time to date.
Eurovision came to Austria for the first time in nearly fifty years in 2015. The show was hosted from the Wiener Stadthalle in Vienna by Mirjam Weichselbraun, Alice Tumler and Arabella Kiesbauer, with the previous year's winner Conchita Wurst presenting in the green room.
Viewers could have been forgiven for thinking they had tuned into the wrong programme, as it began with a video of the Vienna Philharmonic Orchestra performing, followed by a live performance by violinist Lidia Baich. Normal service was soon resumed, however, when Conchita arrived to perform on stage.
The generic Eurovision Song Contest logo was updated this year for the first time since its introduction in 2004, but retained the heart containing the country's flag in the centre. A three letter hashtag was added next to the country name on the DOG during the performances, for use on social media.
The postcards involved a package being delivered to each contestant in their own country, containing an object when they would then use in an activity. The UK's Electro Velvet were apparently living in the BBC's Broadcast Centre at 201 Wood Lane, London! They were delivered 'magic wands' with which they controlled a swarm of LED drones at night on the banks of the River Danube in Linz in Upper Austria.
Reflecting the theme 'Building Bridges', a graphic linking the voting Austria to the voting country preceded each round of scoring. The UK's points were announced by Nigella Lawson.
Radio 2 Eurovision took to the air for the second and final time, and as with last year, Ana Matronic commentated on the semi-finals. Scott Mills was joined by Mel Giedroyc to commentate for BBC3.
The 2015 final was the longest Eurovision Song Contest ever, running just one minute under four hours long.
Eurovision 2016 was hosted from the Ericsson Globe in Stockholm by Petra Mede, who had presented three years earlier, along with the previous year's winner, Mans Zelmerlow. The slogan was 'Come Together', with a dandelion head being the motif.
The postcards were filmed in the contestants' home countries, depicting the contestants' personal and professional lives. The UK's Joe and Jake were shown in the Cavern Club, and then playing football and rugby.
The song intro graphics were much larger than usual, with the country names appearing in a variety of different fonts.
A revised voting system was introduced this year, which saw the jury and phone votes announced separately. This is described in more detail in our review section. In order to free up time for the additional part of the voting sequence, the national spokespeople would now only announce their jury's maximum 12 point score, rather than 8, 10 and 12 as had been the case since 2006. Richard Osman was the UK's spokesperson.
With the demise of BBC3 as a broadcast channel, the semi-final coverage moved to BBC4, but was otherwise unchanged, with Scott Mills and Mel Giedroyc commentating as with last year.
The theme of the 2017 contest was 'Celebrate Diversity'. The presenters were three white men - Oleksandr Skichko, Volodymyr Ostapchuk and Timur Miroshnychenko - the only time in Eurovision history that the presenting line-up has been entirely male. Timur presented mainly from the green room. The venue was the International Exhibition Centre in Kiev.
The postcards were intended to reflect the contestants' 'sincere emotions' according to organisers, depicting the participants in their home countries.
The voting system introduced in 2016 was used once again, with Katrina Leskanich of Katrina and the Waves announcing the UK's 12 points, twenty years after her victory at the contest. From this year, a music bed was used throughout the voting sequence. The UK's commentary teams were again unchanged.
Text copyright © Robert Williams, images copyright © the respective broadcasters