The season averaged a 0.49 demo rating, up 17% versus last year’s 0.42 average. Season 15 debuted in January to its highest-rated premiere in six years with a 0.63 in the demo.

The Season 15 premiere was the highest-rated in six years with a 0.63 rating among the advertiser-targeted 18-49 demographic. That’s up 20% in ratings from the Season 14 premiere, which managed ...