I used to stay up every week to watch this series back in 1989 and have just watched the whole of this first series. I could never get enough of this series as I grew up during the war in Vietnam and knew people who were out there in the war.
It's great to have the whole first series on DVD - there are 21 episodes on 5 DVDs (the pilot episode is not numbered and episode 21 stands alone on disk 5)
The only thing I dislike about this series is that all the original rock songs have been deleted - there is no regular musical introduction of The Rolling Stones 'Paint it, Black' nor any of the other songs that were spread throughout the series - presumably because Sony did not want to pay royalties (or could not negociate a reasonable cost) for the songs, thus keeping production costs down and profits up. There is some music - but of the generic type: anonymous rock guitar riffs.
All said, this is an exceptional series and well recommended. A must-have for anyone interested in That War.