There's one way to keep your advertisers happy: Marvel's Agents of S.H.I.E.L.D. is telling fans via its Facebook page that they should wait until the end of the credits when the show is over, so as not to "risk the spoilers."
Of course, fans of the Marvel Cinematic Universe will know that most Marvel movies have tied into the next film in sequence with a brief tease after the credits. The ones that haven't, have at least had some little Easter egg or guest appearance from elsewhere in the Marvel Universe.
You can check out the video teasing something to watch for below, but even if this hadn't come out, it's not the first time such a thing has been suggested: series star Clark Gregg tweeted yesterday that fans should stick around after the credits, as well.
Of course, most networks now run advertisements in part of the screen while the credits run. Adding something that's already a well-established part of Marvel's strategy to the existing show in such a way that it forces fans to sit through those ads? Clever stuff.