CW Fall 2018 Premiere Dates: Your Complete Guide to New Show Start Times

CW fall premiere dates 2018 marked a significant season for fans of superhero drama, family sagas, and genre storytelling. The network rolled out a slate of returning series and fresh launches that shaped viewing habits and online conversations throughout the late summer and autumn.

These schedules influenced social media buzz, streaming decisions, and live tuning numbers, making it easier for viewers to plan their weekly entertainment. Below is a detailed breakdown of key shows, time slots, and how the season unfolded.

The Flash Season 5 Schedule and Changes

Premiere Shift and Midseason Break

The Flash returned for its fifth season on October 9, 2018, adjusting to a Tuesday night slot to align with the network’s broader comedy and drama pattern. The show dealt with the fallout of the season four finale, introducing new adversaries while winding down earlier character arcs.

CW scheduled a short midseason hiatus in December to accommodate holiday programming, with episodes resuming in January. This break allowed writers to refine the season’s larger mytharc and deliver tighter, more serialized storytelling.

Batwoman Launch and Sunday Lineup

New Hero and Strong Ratings

Batwoman premiered on October 9, 2018, as a Sunday night entry, offering a darker, more mature tone within the Arrowverse. The debut drew strong live ratings and solidified a dedicated fanbase from day one.

Its placement allowed CW to experiment with post-Supergirl lead-ins, shaping the Sunday lineup as a destination for genre viewers looking for edgier, character-driven narratives.

Supergirl Move to Sundays

Strategic Scheduling for Growth

Supergirl shifted from Mondays to Sundays starting with the October 14, 2018 episode, pairing with Batwoman to build a cohesive Sunday brand. This move aimed to boost cumulative viewership by placing the drama next to established hits.

The schedule change also helped the series reach older demo audiences who tuned in later in the evening, supporting advertiser goals and long-term planning.

Legacies and the Thursday Night Spin-off Strategy

Spin-offs and Fresh Storytelling

Legacies, debuting on October 11, 2018, anchored Thursday nights as a spin-off of The Originals. The move tapped into an existing fanbase while attracting younger viewers invested in the intertwined universe.

By situating Legacies after The Vampire Diaries’ reruns, CW reinforced a legacy block that emphasized continuity and long-form character growth.

Nancy Drew and Sunday Mystery Branding

Teen Sleuths and Cross-Promotion

Nancy Drew joined the Sunday night roster on October 9, 2018, blending classic detective fiction with modern teen drama. The show benefited from cross-promotion with Riverdale, creating a shared universe appeal for younger demographics.

Its consistent time slot helped build a reliable audience habit, supporting strong DVR and streaming numbers in the weeks following the premiere.

Key Takeaways for Viewers

• Mark October 9 for multiple debuts, including Batwoman and Nancy Drew.
• Note The Flash on Tuesdays and Supergirl on Sundays for easy weekly planning.
• Expect midseason breaks around December, with returns in January.
• Leverage DVR and streaming to catch shows that aired outside your local time zone.
• Follow official social channels for last-minute schedule updates or special crossover events.