When the sun rises on Monday, Summer 2019 will officially be over. The hottest season of the year was one to forget for series like "Reef Break" and "First Responders Live" -- but neither of them were the lowest-rated show of the summer. TheWrap ranked the Big 4 broadcast networks' Bottom 12 summer series by their average 18-49 ratings, according to the "most current" data from Nielsen. Scroll through the gallery to see how they stacked up.
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Rank: 9 (tie) Show: "Blood & Treasure" Net: CBS 18-49 Rating: 0.6
Rank: 9 (tie) Show: "Love Island" (Friday) Net: CBS 18-49 Rating: 0.6
Rank: 9 (tie) Show: "Love Island" (Monday) Net: CBS 18-49 Rating: 0.6
Rank: 9 (tie) Show: "Paradise Hotel" Net: Fox 18-49 Rating: 0.6
Rank: 9 (tie) Show: "Spin the Wheel" Net: Fox 18-49 Rating: 0.6
Rank: 5 (tie) Show: "Instinct" Net: ABC 18-49 Rating: 0.5
Rank: 5 (tie) Show: "Family Food Fight" Net: ABC 18-49 Rating: 0.5
Rank: 5 (tie) Show: "What Would You Do?" Net: ABC 18-49 Rating: 0.5
Rank: 5 (tie) Show: "First Responders Live" Net: Fox 18-49 Rating: 0.5
Rank: 2 (tie) Show: "48 Hours: NCIS" Net: CBS 18-49 Rating: 0.4
Rank: 2 (tie) Show: "Reef Break" Net: ABC 18-49 Rating: 0.4
Rank: 1 Show: "What Just Happened??! With Fred Savage" Net: Fox 18-49 Rating: 0.2
