The Mark Harmon-led drama from CBS Television Studios is still the most-watched scripted drama on broadcast, and averages 3 million viewers among adults 18-49. The drama, returning for its 13th season, ranks as the most-watched show in the world, with the franchise becoming increasingly important as CSI has seen its fortunes fade to bubble status. NCIS’ most recent spinoff, NCIS: New Orleans, earned a season two renewal in January so the writing seemed to be on the wall for the flagship procedural. CBS will continue to host all three NCIS series for a second year in a row with the seventh-season renewal for NCIS: Los Angeles, which has endured a rough season after moving from Tuesdays at 9 p.m. behind the flagship series to Mondays at 10 p.m. opposite stalwart ABC’s Castle and — at least for a few months — NBC’s buzzy hit The Blacklist. The spinoff, starring Chris O’Donnell and LL Cool J, fell from a 3.3 rating among adults 18-49 to a current average of 2.3. The renewals will continue to keep the franchise strong with three shows on the air.