Sure it is a dated movie, so what! It is fiction and does have Michael York, Jenny Agutter and Richard Jordan giving good acting performances. It may not stay true totally to the books, but then what movies do. It does not have to be analyzed just watched and, enjoyed, and, don't expect high level special effects.
What's great about it: There is more good acting than bad
For the final season, this is a good set. The story lines had diminshed from the first 3 seasons, but, that is to be expected in any series. I do wish there had been some extras, i.e. production notes, how the series came about and, character notes. In other words, the reason behind the series. I still liked it and would suggest it.
What's great about it: The core cast still together.