Following a bit of prognostication, and a pair of cryptic clues from directors Joe and Anthony Russo, we finally have official word that the teaser trailer for Marvel's Avengers: Infinity War will debut on Wednesday. Although that's a little sooner than anyone expected, one question remained: when on Wednesday?

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That window has been narrowed, at least a little, by an announcement that ABC's Good Morning America will host the trailer's world premiere. That means sometime between 7 a.m. and 9 a.m. ET, although odds lean toward the latter, ensuring that viewers stick around for the official first look at the highly anticipated Marvel Studios release.

It's a bit of corporate synergy, as Disney owns both ABC and Marvel Studios. The entertainment giant increasingly uses ABC shows like Good Morning America and Jimmy Kimmel Live! to premiere trailers and showcase actors from its films. The morning show has also been used to promote Marvel Comics events like Secret Empire.

Disney also used the NBA Finals, broadcast on ABC, to unveil the teaser trailer for director Ryan Coogler's Black Panther in June.

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The Russo brothers began the countdown on Monday to the Infinity War trailer premiere with an image of the number three, leading to speculation the teaser might drop on Dec. 3 -- that would've been in line with predictions of "early December" -- or on Thursday. An image of a smiling numeral two released this morning pointed to the latter, but the Russos' approach to a countdown appears to be different from most everyone else. That is, Wednesday is "1," not "0."

Avengers: Infinity War brings together most of the heroes of the Marvel Cinematic Universe to stop Thanos from acquiring the Infinity Stones, a fight that's been building since the Mad Titan was revealed in 2012's The Avengers to be pulling the strings from the shadows. The Avengers will be aided by the likes of Spider-Man, the Guardians of the Galaxy, the Winter Soldier and Doctor Strange, while Thanos will have his own help -- the Black Order.

Directed by Joe and Anthony Russo, Marvel’s Avengers: Infinity War stars Robert Downey Jr., Josh Brolin, Mark Ruffalo, Tom Hiddleston, Chris Evans, Chris Hemsworth, Jeremy Renner, Chris Pratt, Elizabeth Olsen, Sebastian Stan, Benedict Cumberbatch, Paul Bettany, Samuel L. Jackson, Cobie Smulders, Benedict Wong, Zoe Saldana, Karen Gillan, Vin Diesel, Dave Bautista, Pom Klementieff, Scarlett Johansson, Tom Holland and Anthony Mackie. The film opens May 4, 2018.