One of the awesomest cartoons of the 80's, Thundercats! Thunder...Thunder...Thunder...Thundercats! Hoooooo! This poster celebrating the original airdate, January 23, 1985, of the animated series, features Lion-O with the Sword of Omens. There are two versions, and the variant features Lion-O using the Eye of Thundera to grant him "Sight Beyond Sight."