Already mentioned, the original Brideshead Revisited with Jeremy Irons and Anthony Andrews, I really loved it.
Also The Thorn Birds, I think I'd read the book beforehand, a great read, but again loved it.
An American series I really liked Rich Man, Poor Man featuring an unknown Nick Nolte seemed to remember thinking that was great at the time, back in the dim and distant '80s.
I liked the series Tenko, set in a female POW camp in the Far East and also on a 2nd World War theme, Family at War.
I'll confess to liking some early Brookside too.