@Anonymous User
All 4 seasons are on Netflix.
As for it being back on Sky, this also depends on what deals Sky can get in place with the show. What we have to bare in mind is that the show is most likely permanently on BritBox, so it’s more likely to not come back to Sky so BBC/ITV can try get more subscribers for BritBox.
FYI that I do not work for NOW, just a NOW customer trying to help
