This was indeed not a film. It was in fact an episode of the old TV dance show "Shindig" that AIP basically took over and did a half-hour long story to plug the upcoming release of Dr Goldfoot and the Bikini Machine.
It's quite a bit different from the film, but the basic concept is the same - Dr Goldfoot (Price) has built a line of lovely girl robots including the delicious Susan Hart.
Interestingly, Vincent Price explained in an interview many years later that in its original form, Dr Goldfoot was supposed to be more of a musical. Songs that tied into the plot would have made it more like what Rocky Horror would do many years later. The songs were cut from the script (and assumedly never recorded) but a lot of them showed up in this little episode. It's a neat look at what might have been for this classic.
The short (for lack of a better term) is available on a DVD called "Vincent Price-The Sinister Image" that is basically a long-form interview with Price, where he discusses his whole career. The Weird Wild World of Dr. Goldfoot is on the disk as an extra, but it's the main reason I bought the disk.