No Tomorrow
No Tomorrow is a CBS-produced dramedy that airs after a Warner Brothers-produced superhero show. The lack of compatibility shows; No Tomorrow is barely doing better than what Crazy Ex-Girlfriend did in a worse time slot, and this one isn't getting any award nominations. It's getting replaced by Legends of Tomorrow, which is changing time slots, followed by iZombie in the late spring.
Frequency
Frequency at least is a sci-fi show, a little bit more compatible than No Tomorrow is with The Flash, and based off of a movie. That hasn't stopped it from doing poorly, though, and it truly is underwhelming behind Arrow. The 100 will come midseason.