Following on from other Nation's Favourites on the likes of Queen and Elvis, this time the popular ITV brand turns its spotlight on that most magical era in musical history, the 1970s – a decade when pop was at its most glamorous. Featuring interviews with hit makers including Art Garfunkel, Blondie, Abba, Freda Payne, George McCrae, Kiki Dee, The Four Seasons and Gloria Gaynor - this is a 90-minute countdown of the 20 greatest musical moments from a time when everyone knew every week just what was number one. Narrated by Zoe Ball, the show tells the stories behind those irresistibly evocative hits that still hold a special place in our hearts four decades later - from Blockbuster to Bridge Over Troubled Water, Dancing Queen to Hot Love, I Will Survive to Heart of Glass. So, expect disco classics, glam stompers and heartfelt ballads - as we reveal the results exclusive ITV poll to find out which Seventies number one Britain loves the most.