Complex sentence: Superboy's nemesis, Lex Luthor, was introduced in "The Jewel of Techechal" (the first episode broadcast) as Clark's classmate at Shuster U. This Luthor was more interested in fixing basketball games and humiliating Superboy than anything else.
Split into simpler sentences: Superboy's nemesis, Lex Luthor, was introduced in "The Jewel of Techechal" (the first episode broadcast) as Clark's classmate at Shuster University. This version of Luthor was more interested in fixing basketball games and humiliating Superboy than anything else.