CTV in Full-Funnel Marketing: Stop Treating It Like a Reach Tax

CTV sits in full-funnel marketing strategy as both a brand awareness channel and a performance-capable medium, which is exactly what makes it worth taking seriously and easy to misuse. Done well, it builds audience at scale while feeding lower-funnel activity with warmer, more primed prospects. Done poorly, it becomes an expensive line item that nobody can quite justify.

The question most marketing teams are getting wrong is not whether CTV works. It is where in the funnel it belongs, how to connect it to outcomes that matter, and whether the measurement frameworks they are using are honest enough to guide real decisions.

Why CTV Belongs in the Full-Funnel Conversation at All

For most of my career, television was the channel you used when you had enough budget to stop worrying about attribution. It was a brand play, full stop. You bought it, you aired it, and you hoped the awareness translated into something measurable further down the line. The connection between that spend and actual commercial outcomes was, charitably, approximate.

CTV changed that equation in two important ways. First, it brought addressability to a screen that previously had none. You can now target by household, by category interest, by purchase behaviour, and by proximity to a conversion event. Second, it created a feedback loop. Because CTV inventory is served through programmatic pipes, the same data infrastructure that governs your paid search and paid social can, in principle, connect to your streaming buys. That is a genuinely new capability, not a marginal improvement.

None of that means CTV is easy to get right. But it does mean the old excuse for ignoring it, that you cannot measure it so why bother, no longer holds. The measurement is imperfect. It is also more tractable than it was five years ago.

If you are working through where CTV fits within a broader commercial growth framework, the Go-To-Market and Growth Strategy hub covers the wider strategic context, including how channel decisions connect to market penetration, positioning, and audience development.

The Upper-Funnel Problem Most Performance Teams Have Created for Themselves

I spent a chunk of my earlier career overweighting lower-funnel performance channels. It felt rational at the time. The data was cleaner, the attribution was faster, and the results were easy to present in a board deck. What I eventually understood, and what I now think is one of the most important structural insights in marketing, is that much of what performance marketing gets credited for was going to happen anyway.

Someone who already knows your brand, already wants your product, and searches for you by name is not a performance marketing win. That is demand that existed before your paid search campaign started. You captured it. You did not create it. The distinction matters enormously when you are deciding where to allocate budget.

Think about how a clothes shop works. A customer who walks in and tries something on is many times more likely to buy than one who walks past the window. The act of trying it on does not guarantee a purchase, but it changes the probability of one significantly. Upper-funnel activity, including CTV, is the equivalent of getting people through the door and into the fitting room. Performance channels then close the sale. If you only fund the till and starve everything that brings people to the shop, you will eventually run out of warm bodies to convert.

This is the trap a lot of performance-led teams have walked into. They have optimised so hard for what is measurable that they have slowly defunded the activity that makes the measurable stuff work. CTV, used properly, is one of the most efficient ways to rebuild that pipeline of primed, interested audiences.

The BCG framework on commercial transformation makes a similar point about growth orientation: sustainable growth requires reaching new audiences and building brand salience, not just optimising existing conversion paths.

How CTV Actually Functions at Each Stage of the Funnel

The full-funnel framing is useful here because CTV does not do the same job at every stage. Its role shifts depending on where in the purchase experience you are trying to reach someone.

At the top of the funnel, CTV functions as a brand-building and awareness channel. You are reaching people who are not actively in-market, or who do not yet know they should be. The goal is to create familiarity, establish a mental shortlist position, and plant a flag before the consideration phase begins. This is where CTV’s premium, lean-back environment genuinely earns its premium. People watching connected TV are more attentive than people scrolling a social feed. The creative has room to breathe. Completion rates are significantly higher than most digital video formats.

In the mid-funnel, CTV becomes a consideration driver. You can use sequential messaging to deliver a follow-up ad to someone who has already seen your brand spot, moving them from awareness into active interest. You can retarget website visitors or CRM segments who have shown intent signals but have not converted. The targeting precision that CTV now offers makes this kind of sequenced storytelling genuinely executable at scale, not just in theory.

Closer to conversion, CTV is increasingly able to carry direct response messaging. Interactive ad formats, QR codes, and shoppable units are all available in certain CTV environments. Whether these formats outperform dedicated performance channels is context-dependent, but the point is that the channel is no longer a one-trick awareness play. You can push a specific offer, a time-sensitive promotion, or a product-level message to a household that has already been through your upper-funnel creative. That sequencing, from brand to consideration to offer, is where CTV earns its place in a genuinely integrated strategy.

The Measurement Question You Cannot Avoid

I have judged the Effie Awards, which means I have spent time evaluating marketing effectiveness cases from some of the best-resourced campaigns in the world. One thing that stands out consistently is how few brands can demonstrate a clear, honest causal link between their upper-funnel spend and their commercial outcomes. Most use correlation. Some use modelling. Very few can show incrementality with any rigour.

CTV measurement is genuinely hard. The channel sits across multiple buying environments, different publishers, different data clean rooms, and different attribution methodologies. A view on a streaming platform does not pass through the same tracking infrastructure as a click on a paid search ad. That gap is real, and anyone who tells you it is fully solved is selling you something.

What you can do is build a measurement approach that is honest about what it is approximating. Media mix modelling gives you a macro view of how CTV spend correlates with business outcomes over time. Geo-based incrementality tests, where you run CTV in some markets and not others and compare the results, give you a more direct read on causality. Reach and frequency data tells you whether you are actually building meaningful coverage against your target audience, or just buying cheap impressions that never accumulate into anything.

The mistake is using last-click attribution to evaluate a channel that almost never gets the last click. CTV warms the audience. It does not close the sale. Judging it by the same metric you use for paid search is like judging a sous chef by how many dishes they personally plate. It misses the point of the role entirely.

Understanding how to structure market penetration goals alongside brand investment is a useful framing here. Growth at scale requires both reach and conversion, and your measurement approach needs to reflect that dual mandate rather than collapsing everything into a single efficiency metric.

Audience Targeting: Where CTV Has Genuinely Changed the Game

When I was running agency teams in the earlier part of my career, television targeting was essentially demographic. You bought a daypart, you bought a show, and you hoped the audience profile matched your customer profile closely enough to justify the spend. The waste was enormous and largely accepted as the cost of doing business at scale.

CTV has changed that materially. The targeting capabilities available now include first-party data onboarding, lookalike modelling against your existing customer base, purchase data from retail partners, and household-level behavioural signals from streaming platforms themselves. You can suppress existing customers and focus spend on net new acquisition. You can weight spend toward households that match your highest-value customer profile. You can build sequential audience journeys that mirror what you would do in a programmatic display campaign, but in a premium video environment.

None of this means the targeting is perfect. There are still significant questions about identity resolution across devices, about the accuracy of third-party audience segments, and about how well CTV inventory data connects to actual purchase behaviour. But the direction of travel is clear: CTV is becoming a precision channel, not just a reach channel. The brands that treat it only as a reach play are leaving a significant amount of targeting efficiency on the table.

The Forrester intelligent growth model is worth referencing here. It argues that sustainable growth comes from combining market development with smarter audience selection, not from doubling down on the same converted base. CTV’s targeting capabilities make it one of the more practical tools for executing that kind of audience expansion at meaningful scale.

Creative Is Still the Variable That Matters Most

There is a version of the CTV conversation that is almost entirely about technology: programmatic pipes, data clean rooms, identity graphs, measurement methodology. That conversation is important. It is also a distraction if it crowds out the creative question.

CTV is a video medium. It lives on a television screen, often in a living room, often with more than one person watching. The creative has to work in that context. It has to be worth watching. It has to communicate something meaningful within the first few seconds, because completion rates, while high by digital standards, are not 100%. You still have to earn the audience’s attention, even in a less interruptive environment than linear TV.

What I have seen repeatedly, across the agencies I have run and the campaigns I have evaluated, is that brands invest heavily in the media strategy and underinvest in the creative. They buy the right audiences, in the right environments, at the right frequency, and then run creative that was built for a different format, a different screen, or a different objective. The result is a technically sound campaign that does not move anyone.

CTV creative should be built for the lean-back environment. It should have audio that works. It should not rely on subtitles or text overlays to carry the message, because not everyone is watching with full attention. It should have a clear, memorable brand moment early in the spot, not buried in the final five seconds. These are not revolutionary ideas. They are television fundamentals that get forgotten when the conversation is dominated by targeting technology.

Building CTV Into a Full-Funnel Architecture That Actually Works

The practical question for most marketing teams is not whether CTV is valuable in theory. It is how to integrate it into an existing channel mix without creating a siloed budget that nobody can account for.

The most functional approach I have seen treats CTV as part of a connected audience architecture, not as a standalone channel with its own isolated KPIs. That means your CTV audiences are built from the same data foundation as your paid social and programmatic display audiences. It means the sequencing logic that governs your retargeting campaigns also governs your CTV follow-up messaging. It means your reporting framework acknowledges CTV’s role in the experience rather than demanding it prove direct attribution it was never designed to provide.

Practically, this involves a few specific decisions. First, agree on what CTV is being asked to do before you buy it. If the goal is net new audience reach, measure reach and frequency against a defined target audience. If the goal is mid-funnel consideration, measure brand lift and search uplift in exposed versus unexposed groups. If the goal is supporting a conversion campaign, run the incrementality test. Different objectives require different measurement approaches, and conflating them is how CTV budgets get cut after one disappointing quarter.

Second, connect your CTV investment to the commercial outcome it is supposed to influence, even if the connection is indirect. If you are a retailer running CTV ahead of a seasonal peak, the question is whether markets with higher CTV coverage show stronger revenue performance during that window, controlling for other variables. That is not a perfect measurement. It is an honest one.

Third, do not treat CTV as a set-and-forget channel. The audience targeting capabilities mean you can, and should, be optimising against reach quality, frequency caps, and sequential messaging logic throughout a campaign. Passive buying in CTV is expensive. Active management is how you extract the efficiency the channel is capable of.

The broader principles here connect to how growth-oriented teams think about channel architecture. The BCG work on brand and go-to-market alignment makes the point that channel decisions cannot be made in isolation from brand strategy. CTV is a brand channel with performance characteristics, which means it needs to be evaluated through both lenses simultaneously.

If you are thinking about how CTV fits into a broader go-to-market architecture, the Go-To-Market and Growth Strategy hub covers the strategic frameworks that connect channel investment to commercial outcomes across the full funnel.

What CTV Cannot Do (And Why That Matters)

CTV is not a substitute for a clear brand proposition. It is not a fix for a product with weak market fit. It is not going to rescue a campaign where the creative is mediocre or the audience targeting is lazy. It is a channel, and channels amplify what you bring to them. If what you bring is unclear, CTV will amplify that too, just at higher CPMs.

The other thing CTV cannot do is replace the discipline of understanding your customer. I have managed hundreds of millions in ad spend across more than 30 industries, and the single most consistent predictor of campaign performance is not the channel. It is how well the team understands who they are talking to and what those people actually care about. CTV gives you better tools to reach the right person. It does not tell you what to say when you get there.

The teams that get the most from CTV are the ones that have done the audience work first. They know their highest-value customer segments. They have mapped the consideration experience. They have identified the moments where a well-placed video impression can shift intent. The channel then becomes a delivery mechanism for a strategy that already exists, rather than a strategy in itself.

Tools like behavioural analytics platforms can help surface the audience signals that make CTV targeting more precise, connecting on-site behaviour to the audience segments you build for your streaming buys. The data infrastructure matters. So does knowing what you are looking for in it.

About the Author

Keith Lacy is a marketing strategist and former agency CEO with 20+ years of experience across agency leadership, performance marketing, and commercial strategy. He writes The Marketing Juice to cut through the noise and share what works.

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