also the battle of the planets tv series episode rage of the robotoids may have aired around the time beter mentioned robotoids in but lists it airing in so who knows the term is also found in piers anthony's prosthy plus which may have been published as early as in worlds of if and as a novel in but i only found the term in a reprint of the book copyrighted to so it's hard to say however it does seem that the term originated before beter's mention of it in at least now it's just up to either anthony or lost in space i would say although tracing back to robot may provide more clues as to robotoid's origin