CHARADE (original film opening, likely inspired JG's "Our Man Flint" MT) SOLDIER IN THE RAIN WAIT UNTIL DARK CURIOSITY SHOP (ABC, 1971) THE THORN BIRDS TOM'S THEME ("The Glass Menagerie")
As much as I've enjoyed many of his jazzier themes, and loved Charade Main title for most of my life (that was one of the first tracks I recorded from the radio in about 1970/71 when I had my first cassette recorder - a Decca portable) ...
... as I've aged I moved over to his more melodic/romantic works and these days I think it's a choice between Two for the Road - main theme and Whistling Away the Dark from Darling Lili.