What is Zipping?
Zipping is the act of fast-forwarding through television commercials on pre-recorded content. When viewers use a DVR (digital video recorder), PVR, or streaming playback to skip past ad breaks, they are “zipping” through the advertisements. The term became a core concept in media planning once time-shifted viewing went mainstream in the early 2000s.
Zipping differs from zapping, which refers to switching channels during a commercial break. Both behaviors fall under the broader category of ad avoidance, but zipping is specific to recorded or time-shifted content where the viewer has playback control.
Why Zipping Matters to Advertisers
Zipping directly reduces the number of viewers who actually see a commercial, even when the ad technically “aired” during a program with strong ratings. This creates a gap between reported audience numbers and actual ad exposure. Media buyers who rely solely on program ratings without accounting for zipping risk overestimating the real reach of their campaigns.
Nielsen introduced “C3” and later “C7” ratings specifically to address this problem. C3 measures average commercial minute ratings within three days of the original broadcast, including both live and time-shifted viewing. C7 extends that window to seven days. These metrics capture whether viewers actually watched the ads, not just the program.
The Scale of the Problem
Nielsen research has consistently shown that roughly 50% of DVR playback viewers fast-forward through commercials. A 2019 Kantar study found that DVR households skipped ads at rates between 60% and 80% depending on the program genre. Scripted dramas and premium content saw the highest zipping rates, while live events like sports had significantly lower time-shifted viewing overall.
For advertisers spending $200,000 or more on a single primetime 30-second spot, these numbers represent substantial wasted spend if the media plan does not account for zipping behavior.
How Zipping Affects Media Planning
Smart media planners account for zipping in several ways.
Adjusted CPM Calculations
Standard CPM (cost per thousand impressions) assumes the reported audience saw the ad. When zipping is factored in, the effective CPM rises significantly.
| Metric | Without Zipping Adjustment | With 55% Zipping Rate |
|---|---|---|
| Program audience | 5,000,000 | 5,000,000 |
| Time-shifted viewers | 2,000,000 (40%) | 2,000,000 (40%) |
| Viewers who zipped | Not calculated | 1,100,000 |
| Actual ad viewers | 5,000,000 | 3,900,000 |
| 30-second spot cost | $250,000 | $250,000 |
| CPM | $50.00 | $64.10 |
The formula for zipping-adjusted CPM:
Adjusted CPM = Spot Cost / ((Total Audience – (Time-Shifted Viewers x Zip Rate)) / 1,000)
Pod Position Strategy
Viewers who zip do not always fast-forward at full speed. Many slow down or stop near the beginning and end of commercial breaks to avoid missing program content. This makes the first and last positions in an ad pod more resistant to zipping.
Advertisers often pay a premium of 10% to 20% for these positions precisely because of higher visibility during fast-forward playback.
Creative Countermeasures
Some brands have adapted their creative specifically for zipping audiences. Common techniques include:
- Persistent logo placement: Keeping the brand logo visible throughout the spot, not just at the end
- Bold visual elements: Using imagery recognizable even at 6x playback speed
- Front-loaded messaging: Placing the brand message in the first two seconds
TiVo conducted research showing that certain ads with strong visual branding actually generated brand recall even when viewed at fast-forward speed. Coca-Cola and other consumer brands with highly recognizable color palettes and logos performed better in “zipped” recall tests than brands relying on narrative storytelling that required full-speed viewing.
Zipping vs. Other Forms of Ad Avoidance
- Zipping: Fast-forwarding through ads on recorded content
- Zapping: Changing channels during live commercial breaks
- Muting: Turning off sound during commercials while staying on the channel
- Cord-cutting: Abandoning traditional TV entirely for ad-free or reduced-ad streaming services
- Ad blocking: Using software to prevent digital ads from loading, primarily on web and mobile
Each behavior requires a different strategic response. Zipping is unique because the viewer has already chosen to watch the program and is actively engaged with the content. They are not rejecting the medium, only the interruption.
Zipping in the Streaming Era
Ad-supported streaming platforms like Hulu, Peacock, and the ad tiers of Netflix and Disney+ have largely eliminated traditional zipping by disabling fast-forward controls during ad breaks. This forces viewers to watch commercials or wait for them to finish.
However, new forms of zipping-like behavior have emerged. Viewers on ad-supported tiers often pick up their phones, switch browser tabs, or leave the room during non-skippable ads. While the ad technically plays, attention is not guaranteed. This has pushed measurement companies toward attention-based metrics rather than simple completion rates.
YouTube’s skip button on pre-roll ads is a formalized version of zipping. It gives advertisers data on exactly when viewers choose to disengage. Google uses this skip behavior to refine ad targeting and only charges advertisers for ads viewed past the skip threshold on its TrueView format.
Key Takeaways for Marketers
- Use C3 or C7 ratings rather than live-only ratings when evaluating television ad recall potential.
- Factor zipping rates into CPM calculations to understand the true cost of reaching engaged viewers.
- Design creative with zipping in mind: strong visual branding, early logo placement, and bold color contrast.
- Prioritize first and last pod positions in commercial breaks where budgets allow.
- Recognize that streaming platforms have reduced traditional zipping but introduced new attention challenges that require updated measurement approaches.
Frequently Asked Questions
What is the difference between zipping and zapping?
Zipping is fast-forwarding through commercials on recorded or time-shifted content, while zapping is switching channels during a live commercial break. Both are forms of ad avoidance, but zipping requires a DVR or similar playback device, whereas zapping happens during live television.
How do advertisers measure the impact of zipping?
Advertisers primarily use Nielsen’s C3 and C7 ratings, which measure commercial viewership within three and seven days of broadcast. These ratings account for time-shifted viewing and give a more accurate picture of how many people actually watched the ads rather than just the program.
Can zipping still happen on streaming platforms?
Most ad-supported streaming platforms disable fast-forward during ad breaks, preventing traditional zipping. However, viewers still avoid ads by picking up their phones, switching tabs, or leaving the room. This behavior has pushed the industry toward attention-based measurement rather than simple ad completion rates.
What ad formats are most resistant to zipping?
Ads in the first or last position of a commercial break perform best against zipping, since viewers slow down near program content. Creatively, spots with strong visual branding, persistent logos, and bold color palettes generate recall even when viewers fast-forward at high speed.