Complex sentence: In 1986 he created the show "It's Garry Shandling's Show" for the pay cable channel Showtime, which was nominated for four Emmy Awards (including one for Shandling); it lasted until 1990.
Split into simpler sentences: In 1986 he created "It's Garry Shandling's Show", for the pay cable channel Showtime. It was nominated for four Emmy Awards (including one for Shandling) and lasted until 1990.