Well, how about we take a look at the average premiere ratings for Adult Swim shows in the 2015 - 2016
Infomercials, Fishcenter Live, and Off The Air are excluded due to a lack of data as they aired at 4 AM. Toonami premieres have also been omitted from this list.
>Rick & Morty (Season 2): ~1,970,000
>The Jack And Triumph Show (Season 1): ~1,380,000 [cancelled]
>Robot Chicken (Season 8): ~1,280,000
>China, IL (Season 3): ~1,270,000 [cancelled]
>Children's Hospital (Season 6): 1,220,000
>Children's Hospital (Season 7): 1,165,000
>Black Jesus (Season 2): ~1,160,000
>Squidbillies (Season 10 as of December 2016): ~1,130,000
>Mike Tyson Mysteries (Season 2): ~1,120,000
>Decker: Unclassified (Season 1): ~1,100,000
>The Eric Andre Show (Season 4): ~1,090,000 (This was the lead-in for World Peace)
>Neon Joe: Werewolf Hunter (Season 1): ~1,070,000
>YPFIGTH (Season 3): ~1,040,000
>Venture Bros (Season 6): ~1,030,000 including All This and Gargantua-2, ~1,010,000 excluding
>Aqua Teen Hunger Force Forever (Season 11): ~1,000,000 [cancelled]
>Brad Neely's Harg Nallin' Sclopio Peepio (Season 1): ~986,000 [cancelled]
>Mr. Pickles (Season 2): ~973,000
>YPFIGTH (Season 2): 963,000
>Million Dollar Extreme Presents: World Peace (Season 1): ~897,000 [cancelled]
>Dream Corp, LLC (Season 1): ~896,000
>Check It Out! with Dr. Steve Brule (Season 4): ~871,000 [cancelled]
Hmmm....