Complex sentence: McCarthy spent much of the remainder of the 1990s working in film and television, most notably as the designer of the CGI animated science fiction TV series "ReBoot" and as the character creator for "War Planets".
Split into simpler sentences: McCarthy spent much of the remainder of the 1990s working in film and television. Most notably as the designer of the CGI animated science fiction TV series "ReBoot" and character creator for "War Planets".