The broadcast networks premiered 17 scripted shows this summer, more than any season in recent memory. A couple of them -- NBC's The Night Shift and Undateable -- have been renewed, and others like CBS' Under the Dome seem likely to be back too, even if it's not as hot as it was in 2013.
What no one has quite figured out yet, though, is what constitutes the baseline for summer shows' viability. Maybe this infographic of all 17 shows' premiere ratings will help:
Obviously, this is only a snapshot. The numbers in the graphic are the same-day adults 18-49 ratings for each show. Since they don't include Live +7 numbers, they don't represent the final audience for each show. They do, however, show where they stand relative to each other.
The one outlier is 24: Live Another Day, which premiered in-season when TV viewing is higher and was a heavily hyped return after four years off the air. Subsequent episodes drew ratings in the 1.5-1.8 range for same-day, rising to the mid to high 2s in Live +7. But most of the rest have remained within a couple tenths of where they started the summer.