Top of mind is not an accident.

Most brands think they have an awareness problem. What they actually have is a memory problem.

There is a difference. Awareness is exposure — someone has encountered your brand at some point. Memory is retrieval — when the moment of purchase arrives, your brand surfaces automatically before the search bar even opens. Awareness is easy to buy. Memory has to be built.

And building it is not a creative challenge. It is an engineering challenge. One that comes down to two things most media plans get wrong: how often you show up, and where.

In 1972, Herbert Krugman published “Why Three Exposures May Be Enough.” It became one of the most cited frameworks in advertising psychology, and the core idea still holds.

According to Krugman, the first exposure triggers curiosity — what is this? The second triggers evaluation — what does this mean to me? The third is a reminder. Everything after that is reinforcement of an already-formed mental structure.

This maps to what we now understand about memory formation. The brain stores patterns. Repeated, consistent exposure to the same brand signals builds what cognitive scientists call a ‘schema’: a mental shortcut that allows the brain to retrieve a brand automatically when a need arises.

“When the moment of purchase arrives, the consumer doesn’t browse — they retrieve. The brand that wins is the one that built the strongest memory structure before the decision was made.”

— BYRON SHARP, HOW BRANDS GROW

That retrieval is what Byron Sharp calls mental availability, and it is the mechanism behind market share growth. The implication is simple but uncomfortable: a beautiful campaign seen once is largely wasted. A simpler campaign seen consistently is worth far more.

Frequency is one of the most discussed and least understood variables in media planning. Everyone knows repetition matters. Almost nobody has a principled answer for how much.

Google’s large-scale analysis found that ads seen at a frequency of three or more per week drove 61% higher absolute brand lift than ads seen just once or twice. The relationship is not linear — there is a clear inflection point, and staying below it means leaving most of the campaign’s potential unrealised.

Google’s commissioned research with Nielsen also found that linear television effectiveness drops by 22% when audiences see ads more than five times in a single week — and that 46% of all TV impressions in the study were already in that wasteful zone. Half the money spent on linear TV was delivering diminishing or negative returns.

The practical target for most brand awareness campaigns is between two and four exposures per user per week. Below that, you are almost certainly invisible. Above five to six on any single channel, you are wasting money and risking wear-out.

Here is the thing about frequency targets: they only mean something if the impressions are real. And a lot of them are not.

An impression, technically, is an ad being served. Whether it was seen is a different question entirely. Display banners served below the fold, video ads playing muted in a background tab, mobile video in a 180-pixel player on a cluttered page — all of these count as impressions in your campaign report. None of them are doing the cognitive work your frequency model assumes.

This is where the concept of attention becomes more useful than impressions. You are not buying ad placements. You are buying seconds of human attention. CPM tells you how efficiently you bought inventory. It tells you nothing about whether anyone was paying attention to it.

The Trade Desk’s 2025 Premium Payoff Report found that premium media environments drive a 40% increase in purchase intent and are 30% more effective than standard digital placements. Quality of environment is not a luxury consideration — it is a performance variable.

Connected television is structurally different from every other digital format. The ad runs full-screen on the biggest screen in the household. The viewer is leaning back. Sound is on. There is nowhere to scroll. The content is typically non-skippable.

CTV completion rates sit between 90% and 98%. A 15-second CTV spot achieves a 94.5% completion rate. Even 30-second spots see approximately 96% completion. Viewability is near 100% by definition, because the ad occupies the entire screen in an active viewing session.

Comscore’s research quantifies what this means for brand metrics: CTV advertising delivers a 25% lift in brand awareness, a 20% lift in purchase intent, and a 25% improvement in ad recall.

“87% of CTV viewers in Spain can recall at least some detail from an ad seen in their most recent viewing session — stronger recall than comparable digital video environments.”

— MAGNITE SPAIN RESEARCH, MARCH 2026

According to IAB Spain’s 2026 Connected TV study, 95% of Spanish internet users between 16 and 75 — approximately 34.3 million people — already consume content through connected television. That figure has held at 95% for three consecutive years, which the study’s authors interpret not as saturation but as structural maturity.

Here is something most media plans do not account for: the same person can see your ad two times on YouTube, three times on display networks, twice on a streaming platform, and once on social — seven impressions in a single week — and your campaign report will show perfectly reasonable frequency on each individual channel.

No single platform knows what the others are doing. Each channel caps its own frequency independently. The result is that total cross-channel frequency is often far higher than intended, landing some audiences in ad fatigue territory while others barely see the campaign at all.

Managing frequency at the user level, across all channels simultaneously, is one of the most operationally significant advantages of working with a unified programmatic buying partner. Without it, you are setting frequency targets on each channel in isolation and hoping the total lands in the right range. It rarely does.

Being top of mind is not a marketing aspiration. It is an engineering outcome.

It requires frequency built around cognitive science — a minimum of two to three exposures per week, spaced across time, below the threshold where waste begins. It requires format choices that reflect what an impression actually means — prioritising environments where the ad is seen, heard, and completed. It requires channel combinations that manage total cross-channel exposure, not just per-platform caps.

CTV is not the only channel that can do this work. But in the European market right now — with 95% penetration in Spain and an audience actively migrating away from linear television — it is the format that most closely matches what the science requires: high attention, high completion, consistent delivery.