Variety | Ratings: ABC's 'Quantico' Holds Strong, But 'Blood & Oil' Sags; CBS' 'CSI ... Variety The net had to be pleased that 8 p.m. veteran “Once Upon a Time” (preliminary 1.8 rating/5 share in 18-49, 5.3 million viewers overall) held steady in its second week after looking sluggish kicking off its season, but “Blood & Oil” (1.2/3 in 18-49, 5.2 ... |