How Do You Measure the ROI of Linear TV Advertising?

The Measurement Challenge That Holds Brands Back

For performance marketers accustomed to digital precision, linear TV
can feel like a black box. Attribution is complex and proving causation
requires different tools and methods.

This measurement challenge often prevents brands from testing TV or
causes them to underinvest in a channel that could drive significant
growth. The reality is that linear TV can be measured effectively. It
just requires the right approach, tools, and expertise.

Why Traditional TV Metrics Fall Short

Legacy TV measurement focused on reach, frequency, and GRPs. These
metrics describe delivery but don’t connect to business outcomes. For
performance marketers, knowing that a campaign reached 10 million
households isn’t enough. You need to know:

• Did those impressions drive website traffic?

• Did exposed audiences convert at higher rates?

• Which networks and dayparts delivered the best response?

• What was the cost per acquisition compared to other
  channels?

Answering these questions requires moving beyond traditional ratings
to outcome-based measurement.

Attribution Methods for Linear TV

Several approaches can connect linear TV exposure to measurable
results:

Timestamp Analysis This method correlates TV airings
with spikes in website traffic, search queries, or call volume. By
analyzing response patterns in the minutes following each spot, you can
identify which airings drove action.

Exposure-Based Attribution Customer data is matched
against TV exposure data to determine whether converters were in
households reached by your campaign. This connects actual purchases to
TV investment.

Incrementality Testing Geographic or audience-based
holdout tests measure the lift generated by TV compared to a control
group. This isolates TV’s contribution from other marketing
activity.

Multi-Touch Attribution Advanced models incorporate
TV exposure into cross-channel attribution, assigning appropriate credit
to TV within the full customer journey.

Media Mix Modeling Statistical analysis of
historical data quantifies TV’s impact on business outcomes over time,
accounting for seasonality, competitive activity, and other factors.

Each method has strengths and limitations. The best measurement
strategies often combine multiple approaches.

Key Metrics for Linear TV Performance

• Cost per response – What did you pay for each
  website visit, call, or lead driven by TV?

• Cost per acquisition – What was the TV
  investment required to generate each new customer?

• Response rate by daypart – Which time slots
  deliver the most efficient response?

• Network efficiency – Which networks drive the
  best outcomes relative to cost?

• Incremental lift – How much additional business
  did TV generate beyond baseline?

• Halo effect on digital – How did TV impact
  search volume, direct traffic, and other channel performance?

These metrics transform TV from a reach channel into an accountable
performance channel.

How Havas Edge Approaches Linear TV Measurement

At Havas Edge, measurement isn’t an afterthought. It’s built into
every linear TV campaign from the start.

• Pre-campaign baseline – We establish benchmarks
  for website traffic, search volume, and conversion rates before
  launch.

• Real-time response tracking – Our systems
  monitor response patterns tied to specific airings throughout the
  campaign.

• In-house analytics team – Dedicated analysts
  interpret data and translate it into optimization
  recommendations.

• Cross-channel integration – We connect TV
  measurement to your digital analytics for a unified view of
  performance.

• Transparent reporting – We provide clear
  dashboards showing how TV contributes to your acquisition
  goals.

With over 30 years of response-driven TV experience, we’ve developed
measurement capabilities that hold linear TV to performance
standards.

Measurement Makes TV a Performance Channel

The brands getting the most from linear TV aren’t accepting awareness
metrics as the endpoint. They’re demanding accountability and investing
in measurement that delivers it. When TV can demonstrate ROI with the
same rigor as digital channels, it earns budget and drives growth.
Without measurement, it remains a question mark.