The Nation's Favourite…' shows signify the very best in music to the British public previously including hugely iconic artists and genres such as Elvis, Abba, Queen, Bee Gees and Motown. The series has literally become the Nation's favourite music documentary and 2015 will see the brand branch out into eras as they launch 2 new shows, 'The Nation's Favourite 70s Number Ones' & 'The Nation's Favourite 80s Number Ones'. 'The Nation's Favourite 70s Number Ones' will count down the UK's most-loved hits from the decade. ITV viewers have been voting for their favourite 70s songs through the ITV website with the winner being announced at the end of the show, on air primetime 05/03/15. 'The Nation's Favourite 70s Number Ones' album perfectly reflects the show with the 20 biggest hits & names from the countdown but also includes 48 other massive number one hits, across 3 CDs, from the 70s…