The series is based on Dominic Sandbrook's research for his books, State of Emergency: The Way We Were: Britain, 1970-1974 and Seasons in the Sun: The Battle for Britain, 1974-1979.
This is the series description from the BBC website:
Sandbrook is as interested in how ordinary people were changing Britain as he is in politicians. In this episode, he reveals a country brimming with aspiration as millions get on the property ladder, take their first foreign holidays and start to challenge the old class boundaries to their lives. It was a decade in which ordinary British people first felt the thrill of freedom and money, but Sandbrook shows us it was also a decade in which raging conflicts about the economy and Europe loomed large."
Here's a link to the first episode:
1. Get It On 70-72
Here's a link to the series' blog, where the historian and presenter of the tv series shares his experiences:
http://www.bbc.co.uk/blogs/tv/2012/04/the-70s.shtml