#OnThisDay in 1977 #TheWonderTwins debuted on #HannaBarbera’s #animatedSeries #TheAllNewSuperFriendsHour #ZanAndJayna #DonnyAndMarie-inspired #ExtraterrestrialTwins take #anyFormOfWater & #FormOfAnyAnimal respectively #whenMakingContact w each other #origin revealed @dc.com #SuperFriends #comicBook