There were 6 shows in all - 3 broadcast in '74 and 3 in '75. Two of the first series (Thoresby and Penshurst) were re-broadcast concurrently with the '75 series. Most audio off-air recordings come from the second re-broadcast, hence the fact that Warwick Castle has yet to surface amongst collectors. The first series was *probably* recorded in December 1973, although this is an educated guess. The performance does seem a little artificial in places, I agree. Does anybody else think they appear to be miming in places? Or is it just me? I remember speaking to Pete and Maddy about the series after a concert a while back and they seemed to imply that the 'finished product' was only acheived after many false starts and camera placing/lighting issues, so ..... A magnificent sight for Steeleye fans though, may I suggest the Holy Grail? :-)