This series comes from a truly 'golden age' of BBC drama - when the Beeb supplied the drama/actors/script, and a.n.other supplied the cash! It was the third of the 'Tudors' trilogy of series, the first being 'Six Wives of Henry VIII' and the second 'Elizabeth R' (with Gelnda Jackson, THE Elizabeth for many people).
The series of thirteen linked plays covers key episodes in the life of Henry VII, the obscure but vitally important founder of the Tudor dynasty, from the battle of Bosworth (which effectively ended the Wars of the Roses) to his death. It was this Henry, cold but very astute, who laid the political and economic foundations of the state which his more famous son then used. He was in many ways ahead of his time (especially for an English King), being much more a 'Renaissance Prince' - he was at many battles but left the actual fighting and tactical direction to others more skilled in that area. But he thought beyond 'simple' campaigning - at least one rebellion was defeated by a proclamation!
With multiple writers you would expect the plays to be more 'patchy', but all of them work well. True, the 'early stuff' is certainly more gripping, when rebellions and usurpers threatened at every turn. And one episode is devoted to what we now know as the start of the Protestant movement; interesting but slow. However, the extra episodes do allow for greater character development in what might otherwise be simple cameos - the tragic Earl of Warwick (prisoner since the age of nine, trapped by birthright as the Yorkist heir); and most dangerous pretender Perkin Warbeck.
Anyway, if you're at all interested in historical drama (as opposed to the historically dubious 'soft porn' of the latest terrible 'Tudors' offering), BUY THIS NOW! I've waited over 30yrs for this chance - roll on the last remaining treasure, 'The Devils Crown'......