Indeed it did originally air in color! I saw it way back then in 1973 when it premiered as an episode of an anthology series that ABC broadcast opposite the Tonight Show! Shot on videotape, it had the delightful crude look of a typical cheap soap opera of that period! Yes, very early 70's with the kinky music track! I'm surprised a kinetoscope was even made of this show.
Back in those carefree days, all kinds of weird stuff was cranked out on videotape. I remember another episode from this short-lived series about a criminal having himself cryogenicly frozen to escape the law, very bizarre!
The Screaming Skull episode was inspired by the B flick from 1958, though the vengeful disceased wife is really the only common thread. I liked this remake for what it was, a terrific piece of kitsch video from an uncertain time, with a long war suddenly over and the president involved in wiretapping, strange things surfaced on the tube!!
A couple years later another bizarre show premiered late at night. It was Saturday Night Live! That proved to be the experiment that ended late night experimentation!
