Seems like this is a little muddled. AIP-TV needed some truly inexpensive features to pad out a syndication package, and Buchanan ended up with the job. Reports vary, but they apparently used scripts that were "readily available", with the following results:
It Conquered The World - Zontar, The Thing From Venus
Invasion Of The Saucer Men - The Eye Creatures
Pajama Party - Mars Needs Women The She Creature - Creature Of Destruction
The Day The World Ended - In The Year 2889
Pretty mindbending to experience these, when unprepared. I was dozing in and out of "Zontar" the first time, and I woke up thinking I had dreamt most of it.
I'll have to accept the common thought that much was filmed around Dallas, but I have to say that it sure looks like Bronson Canyon much of the time...heh
--Judex.1--