This was the first episode broadcast in color.
The character of Lt Col Bill Christy had appeared earlier, in Grant Me No Favor (1965), but was played by Frank Aletter.
The first episode in color, it includes a colorized version of the deliberate belly landing of a B-17 by stunt pilot Paul Mantz shot (in black & white) for the original movie Twelve O'Clock High (1949) from which this series was adapted.