Yup! The good old days..
I wonder if the car was a 67' 'test mule' they used for the show or if they were putting 67' bits on a later production 66'?
I think that the car companies provided cars for these shows, and perhaps some had pre-production stuff on them. Here is an example of a '72 Barracuda Convertible, but Plymouth never made any. This from the Brady Bunch
The Bewitched Episode was the time when Darrin had wished that he had never met Samantha. Endora made this come true and Endora and Samantha had a look at Darrin's life without her. It showed Darrin driving the 68.
Ultimately Samantha recognized that while Darrin had power at McMann, Tate and Stevens and prestige, and ... Darrin was lonely and better off with her and Endora made it all right again.
"You know Sam..., sometimes there are times that I wished that I had never met you..., then there are others when I realize that I couldn't live without you."
Yup, that Goat is sportin' 67 rockers. 66 has the GTO emblem on the fender. 66 had the oval steering wheel; not sure about the 67. Anyways, the 65 thru 67 Goats were flat-out beautiful. And those 389 (and 400) torque monsters! They were faaaaast... And who could forget the Motor Trend article where the 65 beat the Ferrari! Go Detroit!
Oh yeah, this is a Corvette forum, I forgot.