“The Wall” returned for its third season to a season low rating and total viewership on Sunday night, as “American Idol” came out on top. The Chris Hardwick hosted NBC show scored a 0.6 rating among adults 18-49 and 3.3 million viewers, down on its previous series low of a 0.7 and 4.2 million viewers.…

via TV Ratings: ‘The Wall’ Returns to Series Low, ‘American Idol’ Tops Sunday — Variety