Connected TV and linear television advertising are fundamentally different products that happen to appear on the same physical screen. Understanding the differences in targeting, measurement, CPMs, and audience composition is essential before allocating budget to either channel.
Targeting. CTV advertising is targetable at the household level using first-party data, third-party audience segments, geographic precision, and behavioral signals. You can reach households that have recently searched for SUVs within a specific ZIP code. Linear TV is targeted at the program level - you buy audiences based on who watches specific shows, based on Nielsen demographics. No household-level precision.
Measurement. CTV provides digital-grade measurement: impressions delivered, completion rates, frequency distribution, and conversion tracking through pixel-based attribution or identity resolution. You can measure whether households that saw your CTV ad searched for your brand, visited your website, or made a purchase. Linear TV measurement is panel-based, delayed, and imprecise - you get estimated reach and frequency, not verified delivery.
CPMs. CTV CPMs range from $20-80 depending on platform, targeting, and inventory type. Linear TV CPMs (specifically, local broadcast) typically range from $5-20 for broad audiences, making it the lower-CPM option. However, the effective cost-per-quality-impression often favors CTV once waste (non-target households) is factored out.
Minimum effective budget. CTV can be purchased at lower minimums - $5,000-15,000 for a meaningful test. Linear TV spot purchasing on local broadcast can be done at similar levels, though national linear TV requires significantly larger budgets to achieve meaningful reach.
CTV is the right primary TV channel when: your target audience is definable beyond age/gender demographics (behavioral, purchase intent, life stage), measurement and attribution matter to your marketing performance framework, your budget is $10,000-$200,000 per month range, and your audience over-indexes on streaming consumption (generally 18-54 age range).
CTV also makes sense as a complement to social and search advertising - the premium video creative impact reinforces awareness for audiences already being reached through digital channels. The cross-channel measurement increasingly allows attribution across CTV and digital touch points.
Linear TV is the right choice when: you are a mass-market brand with broad household appeal seeking maximum reach efficiency, your target audience skews 55+ (higher linear TV consumption), you are buying local broadcast to reach news and sports audiences specifically, or you are testing TV advertising and want the lowest CPM entry point before committing to CTV budgets.
CTV creative is consumed in lean-back, full-attention environments - the living room TV, lights dimmed, content the viewer chose. Creative can be more nuanced, less repetitive, and more storytelling-forward than social video. Completion rates are 90%+; you have the full 15 or 30 seconds.
Linear TV creative competes with channel-surfing during commercial breaks. First 3 seconds need to capture attention; brand identification should be early and clear; message should be simple enough to retain across a brief viewing. The production standard for linear TV is higher because the audience will compare your ad directly to national advertiser spots in the same break.