I've been informed to “skip” the first episode as all the material is covered in the subsequent episodes.
It's on DVD, sometimes the full episodes area also on youtube.
http://en.wikipedia.org/wiki/All_You_Need_Is_Love:_The_Story_of_Popular_Music
For the shortcut, watch the episodes on country/blues/rock&roll, but all are recommended even though it tends to ramble a bit more without course in the later episodes, missed out on punk, ended before the 1980s and has had no followup production. Also some of the talking heads are asses but there is no narration so that determination is left up to the viewers.