There was a popular series on World War 2 that was done in color. Wikipedia's Entry says the following: World War II In HD Colour is a 13-episode television do
chronicle
first-blood
the-lure
mechanic-resurrection
the-sunset-limited
the-hateful-eight
the-bletchley-circle
kaabil
miami-vice
suits
biopic
pan
half-baked
v
the-conjuring-devil-made-me-do-it
snatchers
the-right-stuff
batman-the-animated-series
stay
the-founder
the-tale-of-the-princess-kaguya
the-artist
where-eagles-dare
extraction
the-guest
the-jackal
actor
dracula
the-scribbler
a-man-for-all-seasons