Here are The CW’s renew/cancel standings for week 5 of the 2017-18 season, which upgrade a show to certain renewal.
|Show||Status||18-49 rating||Renew/Cancel Index|
|Valor||🐻 🐻 🐻||0.23||0.03|
|Crazy Ex-Girlfriend||🐻 🐻 🐻 🐻||0.2||0.0|
|Jane the Virgin||🐻 🐻 🐻 🐻||0.27||0.07|
|Dynasty||🐻 🐻 🐻 🐻||0.27||0.07|
|Arrow||🐻 🐻 🐻 🐻||0.53||0.33|
|Supernatural||🐻 🐻 🐻 🐻||0.67||0.47|
|Riverdale||🐻 🐻 🐻 🐻 🐻||0.67||0.47|
|Supergirl||🐻 🐻 🐻 🐻 🐻||0.5||0.3|
|Legends of Tomorrow||🐻 🐻 🐻 🐻 🐻||0.53||0.33|
|The Flash||🐻 🐻 🐻 🐻 🐻||1.0||0.8|
The 2017-18 TV season isn’t off to much of a start. The great majority of shows are running behind their ratings from a year ago, some by quite a bit.
One that’s not? “Riverdale,” much to the Bear’s surprise. The show moped along in the middle of The CW’s ratings pack last season — then proceeded to record its three best ratings to date in its first three episodes this season.
That performance earns the show an upgrade to certain renewal for next season. “Riverdale” has gone from a middling performer on The CW to a tie for the second highest-rated show on the network. No way The CW walks away from that.
Note: All of The CW’s shows are produced by network owners CBS and Warner Bros., so the (O) designation (see below) is immaterial.
|DSW||Dead Show Walking: All but officially canceled yet still airing|
|🐻||sure bet to be canceled by May 2018|
|🐻 🐻||likely to be canceled by May 2018|
|🐻 🐻 🐻||tossup between renewal and cancellation by May 2018|
|🐻 🐻 🐻 🐻||likely to be renewed by May 2018|
|🐻 🐻 🐻 🐻 🐻||sure bet to be renewed by May 2018|
The Renew/Cancel Index is the amount above (or below) a replacement-level rating — i.e., the expected adults 18-49 rating of an emergency fill-in show should a series be canceled. For the 2016-17 season, replacement level is a 0.7 same-day rating in adults 18-49 for the Big 4 networks and a 0.2 for The CW. (Read more here.) The index number is taken by subtracting 0.7 (or 0.2) from a show’s average same-day rating.
Friday scripted shows (denoted with an “F” above) on the Big 4 have average ratings about 30 percent lower than those of other nights, therefore their ratings are multiplied by 1.43 (1/0.7, or 70 percent) before subtracting the replacement-level number. There is little variance for The CW on Friday, so the multiplier is not used.
Shows that have ended their seasons have their R/C Index number frozen at the point of their final episode.
(O) – Owned: All other things equal, shows owned by studios affiliated with their networks have a better shot at renewal than those from outside producers.