As they did last year, the CW announced a flurry of renewals at their Winter TCA Day. Renewed for 2017-18 were Supergirl (season 3, 2nd on CW), The Flash (season 4), Arrow (season 6), DC's Legends of Tomorrow (season 3), Supernatural (season 13), Crazy Ex-Girlfriend (season 3), and Jane the Virgin (season 4).
The DC shows (Supergirl, The Flash, Arrow, and DC's Legends of Tomorrow) are the backbone of the CW lineup. Supergirl has made a successful transition to the CW after a year on CBS and while the superhero shows are down some from last year, they had a very successful four show crossover in December. Supernatural has been around since the WB days and continues to be a reliable performer. Crazy Ex-Girlfriend and Jane the Virgin are low rated but critical darlings, which is rare for the CW and network shows in general. The lead actresses of both shows were nominated for Golden Globes tonight.
These seven shows encompassed all shows currently airing on the CW except the ending The Vampire Diaries and newbies Frequency and No Tomorrow. Both new dramas had their episodes capped at 13 and seem unlikely to get a renewal unless they get a big boost on Netflix in the near future. Still to premiere this season are the new Riverdale and returning iZombie, The Originals, The 100, and the final season of Reign.