What are typical duration constraints for platform-specific media, and what should be considered?

• A. All platforms require exactly 60 seconds; no variation.
• B. Platform constraints are irrelevant to pacing or CTAs.
• C. TV spots have fixed airtime slots; digital videos vary, usually shorter but can be longer; pacing, storytelling, and calls-to-action must fit the platform.
• D. TV spots are unbounded; digital videos must be exactly 30 seconds.

Answer: (C)

Durations are shaped by the place where the media will run, so how long a video should be depends on the platform and its typical viewing behavior. TV operates in fixed airtime slots, so ads are scheduled in precise lengths like 15, 30, or 60 seconds, and every frame of the spot needs to land the message and a clear call to action within that exact window. Digital video, by contrast, varies a lot by platform and ad type: many clips are shorter—think 6–15 seconds for quick bumps or pre-rolls—but longer formats exist too, up to a couple of minutes on platforms that allow non-skipable or longer in-stream ads. Because digital often involves autoplay, skippable options, and diverse handling on mobile, the pacing, storytelling, and the placement of the call to action must be tailored to fit each platform’s constraints. This is why the best answer highlights both the fixed nature of TV slots and the flexible, shorter-but-possible- longer range of digital, plus the need to align pacing and CTAs with the platform. The other statements claim universal durations or that constraints don’t matter, which ignores how different platforms shape how a message is told and when viewers are likely to engage.