Introduction to CTV Advertising Connected TV (CTV) refers to any television that can stream video content through an internet connection, either via ...

Connected TV (CTV) refers to any television that can stream video content through an internet connection, either via built-in smart capabilities or external devices like Roku, Amazon Fire TV, Apple TV, or gaming consoles. Unlike traditional linear TV, CTV allows viewers to watch content on-demand, bypassing scheduled programming. This shift from broadcast to internet-delivered content has fundamentally changed how audiences consume media and how advertisers reach them.
The distinction between CTV and traditional TV advertising is profound. Traditional TV relies on broad demographic targeting (e.g., women aged 25-54 watching a specific channel at a certain time) and is bought through upfront deals or scatter markets based on estimated viewership (Gross Rating Points). In contrast, CTV advertising is data-driven, enabling precise targeting based on user behavior, interests, and first-party data. Ads are served programmatically to specific households or devices, moving from a spray-and-pray model to a sniper-like approach. For instance, while a traditional TV ad for a luxury car might run during a prime-time drama hoping to reach high-income viewers, a CTV campaign can target users who have recently visited automotive websites, reside in affluent Hong Kong postal codes like The Peak or Repulse Bay, and have shown interest in premium brands.
CTV's popularity is surging globally, with Hong Kong being a particularly strong market. According to a 2023 report by the Hong Kong Communications Authority, over 78% of households in Hong Kong now own at least one internet-connected TV device, a significant increase from 55% in 2020. This growth is driven by several factors: the proliferation of streaming services like Netflix, Disney+, and local platforms myTV SUPER; the post-pandemic acceleration of digital adoption; and consumer demand for control over what, when, and how they watch. For advertisers, this represents an unmissable opportunity to engage with a highly attentive, screen-locked audience that is increasingly unreachable through traditional television channels.
The CTV advertising landscape is a complex but interconnected ecosystem where different players collaborate to deliver ads to viewers. Understanding these roles is crucial for any advertiser looking to navigate this space effectively.
Demand-Side Platforms are the software systems used by advertisers and agencies to purchase digital ad inventory across multiple supply sources in an automated fashion. stands out as a sophisticated DSP designed specifically for the nuances of CTV. It provides a unified interface to access inventory from a vast array of CTV apps and publishers. A key advantage of using a platform like AlphaDesk is its ability to apply advanced data targeting and frequency capping across different CTV environments, ensuring that ad spend is optimized and audience reach is maximized without oversaturation. For a Hong Kong-based beauty brand, AlphaDesk could facilitate a campaign that targets females aged 18-35 who watch K-dramas on Viu and lifestyle content on YouTube, all managed from a single platform.
The power of CTV advertising lies in its targeting capabilities, which are fueled by data. Data providers like are the backbone of this precision. They aggregate, analyze, and segment audience data from various sources, including online behavior, purchase intent, and demographic information. AlphaData can enrich a CTV campaign by appending valuable insights to device IDs or IP addresses, allowing advertisers to go beyond basic demographics. For example, an advertiser using the AlphaDesk DSP can leverage AlphaData segments to target "Hong Kong families likely to be planning an overseas vacation" or "high-value investors interested in wealth management products," making the CTV ad buy incredibly efficient and relevant.
On the flip side, Supply-Side Platforms (SSPs) are the technology used by publishers and app developers to manage their advertising inventory. They connect to multiple DSPs (like AlphaDesk) and ad exchanges to sell their available ad slots to the highest bidder in real-time. When a user streams a show, the CTV app's SSP sends an ad request to the market, and DSPs bid on it. The winning ad is then instantly displayed. Major CTV SSPs include Google Ad Manager, SpotX, and Magnite.
These are the creators and distributors of the content that audiences consume. This group includes streaming giants (Netflix with its new ad-supported tier, YouTube), broadcaster-owned apps (TVB's myTV SUPER in Hong Kong), and niche streaming services. They provide the premium, brand-safe environments where CTV ads are displayed. The relationship between all these players—advertiser (using AlphaDesk), data provider (AlphaData), SSP, and publisher—forms a seamless chain that delivers targeted advertising to the right connected TV screen.
CTV advertising offers a suite of advantages that traditional TV simply cannot match, making it a powerful component of a modern marketing strategy.
This is the cornerstone benefit of CTV. Instead of buying a broad audience, advertisers can buy access to specific audience segments. This is achieved through a that integrates data and technology. Targeting can be based on:
This precision minimizes wasted impressions and significantly improves campaign performance and return on ad spend (ROAS).
CTV bridges the gap between traditional TV's brand-building power and digital marketing's measurability. Advertisers can track metrics far beyond mere estimated reach. Key performance indicators (KPIs) for CTV campaigns include:
| Metric | Description |
|---|---|
| Completion Rate | The percentage of ads watched to completion (typically very high on CTV). |
| Impressions & Reach | Exact number of ad views and unique households reached. |
| Frequency | The average number of times each household sees the ad. |
| Website Visits / Conversions | Trackable when paired with other digital efforts, showing post-view activity. |
CTV environments are generally considered premium and brand-safe. Ads appear within professionally produced, full-length content on a large screen in the living room, akin to traditional TV. Advertisers can use tools within their CTV Advertising Solution to blacklist specific apps or content categories that do not align with their brand values, ensuring their message is delivered in a suitable context.
CTV ads are inherently engaging due to the viewing experience. They are typically unskippable, full-screen, high-quality video ads with sound. Furthermore, interactive ad formats are emerging, allowing viewers to use their remote to click a button for more information, a special offer, or even a direct purchase. This level of engagement is impossible with traditional linear TV.
Despite its immense potential, the CTV market is not without its hurdles. Advertisers must be aware of these challenges to plan and execute effective campaigns.
The CTV ecosystem is highly fragmented. Consumers use a multitude of devices (Smart TVs, Roku, Fire Stick, Apple TV, etc.), operating systems (Roku OS, webOS, Tizen, Android TV), and apps. This fragmentation makes it difficult to achieve universal reach and requires advertisers to work with platforms, like AlphaDesk, that can aggregate inventory across these many walled gardens. Standardization of measurement and ad formats across this fragmented landscape remains a work in progress.
As with any digital channel, fraud is a concern. In CTV, common fraudulent activities include IVT (Invalid Traffic) from bots, spoofing (where low-quality inventory is misrepresented as premium CTV), and app spoofing. Combating this requires sophisticated fraud detection tools. Reputable DSPs and a comprehensive CTV Advertising Solution will incorporate pre-bid fraud filters and third-party verification integrations from companies like Integral Ad Science (IAS) or DoubleVerify to ensure ad spend is protected.
While CTV is more measurable than traditional TV, creating a unified, cross-platform measurement standard is challenging. Differences in how different publishers and platforms define and report a "view" can create discrepancies. Furthermore, attributing a downstream action (like a website purchase) directly to a CTV ad view is complex due to the separate nature of the TV and other digital devices. The industry is moving towards solutions like probabilistic attribution and uplift studies to better understand CTV's full-funnel impact.
Launching your first CTV campaign can be straightforward if you follow a structured approach.
Start with your marketing objectives. Who are you trying to reach? Use your own customer data and leverage data partners like AlphaData to build detailed audience personas. Are you targeting young professionals in Hong Kong for a new fintech app? Or families for a grocery delivery service? The more precise your audience definition, the more effective your CTV campaign will be.
CTV CPMs (Cost Per Mille) are generally higher than most digital display or social video due to the premium nature of the inventory. A reasonable starting CPM in the Hong Kong market can range from HKD $80 to HKD $250+, depending on the targeting specificity and publisher quality. A test budget of HKD $50,000 - HKD $100,000 is a common starting point for a mid-sized campaign to gather sufficient data and learnings.
Selecting the right technology partner is critical. When evaluating a DSP like AlphaDesk, consider the following:
A platform like AlphaDesk is designed to address these points, providing a holistic CTV Advertising Solution.
Before launching, define your KPIs. Are you focused on upper-funnel brand awareness (measured by reach and frequency), mid-funnel consideration (measured by website traffic uplift), or lower-funnel conversions? Set up tracking pixels on your website to measure post-view activity. Analyze the data from your DSP dashboard to understand what's working and optimize your campaign in-flight—adjusting targeting, creative, or budget allocation based on performance.
Case Study 1: Hong Kong Luxury Resort
A high-end resort in Lantau sought to drive bookings from local staycationers and affluent Southeast Asian tourists. Using the AlphaDesk DSP, they targeted households in Hong Kong with high disposable income (using AlphaData segments) and users who had recently searched for travel-related terms. The CTV campaign featured stunning cinematic creative showcasing the resort's amenities. The result was a 22% increase in direct website traffic and a 15% uplift in bookings from the targeted regions, demonstrating CTV's power to drive high-intent actions.
Case Study 2: Regional E-commerce Platform
An e-commerce platform launching a new line of health supplements used a CTV campaign for brand building. They ran a frequency-capped campaign on popular health and lifestyle apps to maximize reach without annoying viewers. By measuring brand lift through a pre-and post-campaign survey, they found a 18-point increase in ad recall and a 10-point increase in purchase intent among the exposed audience, proving CTV's effectiveness for top-of-funnel marketing.
The evolution of CTV advertising is rapid, with several key trends shaping its future: