Is TV advertising worth it in 2026? It is the question we hear most from marketing directors right now, usually followed by a second one: should that money go to YouTube instead? The honest answer is more interesting than either camp admits. TV still generates more advertising profit than any other channel in the UK. At the same time, live TV audiences are shrinking every year, young adults have almost left the schedule, and YouTube now takes a record share of viewing on the television set itself.
We pulled together the most recent primary data we could find: Ofcom’s Media Nations 2026, Nielsen’s Gauge, the AA/WARC Expenditure Report, Barb, and the Profit Ability 2 econometrics study. This report sets out what the numbers say, where they disagree, and how we would split a budget between TV and YouTube if it were our money.
The short version
- TV still pays back. Every £1 spent on TV returned £5.61 in profit over 24 months in the Profit Ability 2 study, against £3.86 for online video. Note the study is funded by the TV industry.
- But the audience is ageing fast. Only 26% of 16 to 24s watch linear TV in a typical week, against 91% of people aged 75 and over.
- YouTube is now a TV channel. TV sets are the main screen for YouTube in the US, with over 1 billion hours watched on TVs every day, and YouTube took 14.2% of all US TV viewing in July 2026.
- TV is cheaper than you think. In 2025, 598 UK advertisers spent under £50,000 on TV, and new self serve platforms have removed minimum spends altogether.
- The right answer is usually both. TV for fast, broad reach at scale. YouTube for compounding owned attention, younger audiences and the TV screen at a fraction of the cost.
Is TV advertising worth it? What the profit data says
The strongest case for TV comes from econometrics. Profit Ability 2, produced by Thinkbox with Ebiquity, EssenceMediacom, Gain Theory, Mindshare and Wavemaker, modelled 141 brands and £1.8bn of media spend between 2021 and 2023. It found that TV received 43.6% of the advertising investment but delivered 54.7% of the total profit generated by advertising over 24 months (Ebiquity, Profit Ability 2 press release).
Share of all advertising generated profit, by channel (UK, 24 months)
Per pound, the gap is narrower than the headline suggests. Over 24 months TV returned £5.61 for every £1 spent, linear TV alone £5.94, and online video (which Ebiquity describes as mostly YouTube) £3.86. The average across all media was £4.11 (Thinkbox, Profit Ability 2). So online video sits just below the average, while TV sits well above it.
Profit returned per £1 of media spend over 24 months
Two caveats matter. First, every Thinkbox figure is funded by the TV industry, so treat it as the strongest version of the TV case rather than a neutral verdict. Second, the data covers 2021 to 2023, before YouTube’s biggest jump onto the TV screen. A follow up study by WPP Media, commissioned by Thinkbox in June 2026, went further and claimed the average brand leaves 11% of potential profit growth on the table, recommending TV rise to 64.6% of the mix (Thinkbox, The Growth Gap). That is a model of an ideal world, not a description of what brands achieve.
TV is not dead. Lazy TV planning is. The channel still pays back, but only for brands that can afford the reach, the creative and the patience it demands.
Is TV advertising dead? What UK viewing data shows
No, but it is shrinking in a way no planner can ignore. Ofcom’s Media Nations 2026 found broadcaster TV viewing fell by 11 minutes (8%) year on year to 2 hours 19 minutes per person per day in 2025. Linear viewing, the live schedule where most TV ads run, fell 12% to 1 hour 51 minutes (Ofcom, Media Nations UK 2026).
Weekly reach tells the same story. In 2025, 70% of people in the UK watched broadcaster content for at least 15 minutes a week, down from 73% in 2024 and 78% in 2022 (Ofcom news release, July 2026). That is still an enormous audience. But every year it gets older and a little smaller.
UK weekly reach of broadcaster TV (15+ minutes a week)
Is TV advertising still effective for younger audiences?
This is where the TV case weakens sharply. 16 to 24 year olds watched just 22 minutes of linear TV a day in 2025, and only 26% of them watch linear TV in a typical week, compared with 91% of those aged 75 and over (Ofcom, Media Nations UK 2026). Thinkbox counters that 16 to 34s still spend more time with TV advertising than with YouTube and TikTok combined, because so much of their TV comes through broadcaster streaming apps, which make up 69% of their total TV viewing (Thinkbox, TV Viewing Report 2025). Both things are true: young people still watch TV brands, just not on the schedule.
TV vs YouTube: YouTube is now on the TV screen
The old framing of TV versus online video no longer describes how people watch. In February 2025 YouTube said TV had overtaken mobile as the primary device for YouTube viewing in the US, with viewers watching more than 1 billion hours of YouTube on TVs every day (YouTube Blog, Our big bets for 2025). In January 2026 it added that it had been the number one streaming service in US watch time for nearly three years, according to Nielsen (YouTube Blog, 2026 letter).
YouTube share of all US TV viewing, Nielsen The Gauge
In July 2026 streaming took 49.0% of all US TV time, with broadcast at 19.5% and cable at 18.7%. YouTube alone took 14.2%, a record (Nielsen, The Gauge, July 2026). Streaming first overtook broadcast and cable combined in May 2025 (Nielsen, The Gauge, May 2025).
Is YouTube bigger than TV in the UK?
It depends which measure you trust, and that is worth knowing before anyone quotes a number at you. Barb now measures YouTube viewing on TV sets, the first TV currency in the world to do so (Barb). Using Barb data, VideoWeek reported that YouTube’s monthly cross screen reach passed the BBC’s in December 2025, at 51.9 million against 50.9 million. On TV sets alone, though, the BBC reached 50 million and YouTube 37.5 million, and YouTube took 8.73% of TV set viewing against the BBC’s 19.2% (VideoWeek, reporting Barb data).
Ofcom puts YouTube’s reach at 94% of UK online adults, with an average of 51 minutes a day (Ofcom, Online Nation 2025), and found YouTube viewing on TV sets more than doubled from 9 minutes a day in 2022 to 19 minutes in 2025 (Ofcom, Media Nations UK 2026). Thinkbox, meanwhile, points out that total TV advertising still accounted for 85% of the video advertising people saw each day in 2025 (Thinkbox, TV Viewing Report 2025). The fair summary: YouTube reaches almost everyone, but broadcasters still own far more of the advertising minutes.
| Measure | Broadcaster TV | YouTube | Source |
|---|---|---|---|
| Monthly reach, all screens (Dec 2025) | 50.9m (BBC) | 51.9m | Barb via VideoWeek |
| Monthly reach, TV sets only (Dec 2025) | 50m (BBC) | 37.5m | Barb via VideoWeek |
| Share of TV set viewing (Dec 2025) | 19.2% (BBC) | 8.73% | Barb via VideoWeek |
| YouTube minutes a day on TV sets | n/a | 9 (2022) to 19 (2025) | Ofcom |
| Share of daily video ad exposure (2025) | 85% (all TV) | Part of remaining 15% | Thinkbox |
Reach and share figures use different methods and thresholds. Compare within rows, not across them.
TV advertising vs social media: where the money is moving
Advertisers are already voting with their budgets. UK TV advertising was worth £5.2bn in 2025, down 1.2%. Inside that total, addressable TV, which includes broadcaster video on demand, grew 37% to £1.84bn. Social media, which AA/WARC now defines to include YouTube, grew 21% to £11.5bn (AA/WARC Expenditure Report, April 2026).
| UK channel | 2025 spend | Change vs 2024 | 2026 forecast |
|---|---|---|---|
| TV (total) | £5,216.1m | down 1.2% | up 3.7% |
| of which addressable TV | £1,839.0m | up 37.0% | up 13.6% |
| Social media (includes YouTube) | £11,515.4m | up 21.0% | up 16.5% |
| Search | £17,876.1m | n/a | n/a |
| Total UK ad spend | £46,682.7m | up 6.4% | up 8.2% |
Sources: AA/WARC Expenditure Report, April 2026 and AA/WARC, Q1 2026. AA/WARC moved YouTube into social media in April 2026, so do not compare with older reports.
Globally the shift inside TV itself is just as clear. WPP Media forecasts linear TV ad revenue falling from $123.5bn in 2025 to $120.3bn in 2026, while streaming TV grows from $43.9bn to $50.5bn, taking streaming to nearly 30% of all TV ad revenue (WPP Media This Year Next Year, via Marketing Brew).
Global TV advertising revenue, linear vs streaming ($bn)
Is TV advertising expensive? What it costs in the UK
Less than most people assume, at least to get started. Thinkbox reports that in 2025, 598 advertisers spent less than £50,000 on TV, more than 400 spent less than £25,000 and more than 200 spent less than £10,000. A further 984 advertisers were either new to TV or returning after more than five years away (Thinkbox, Cost of TV advertising). Half of all TV advertisers spent under £250,000 and only 5% spent more than £10m (Thinkbox, TV works for brands of all sizes).
Pricing follows demand. A 60 second spot costs roughly double a 30 second one, January is the cheapest month and September to November the most expensive (Thinkbox, Cost of TV advertising). Access is also opening up: Comcast’s Universal Ads launched in the UK in June 2026 with no minimum spend across ITV, Channel 4 and Sky (Universal Ads UK).
The real cost of TV is rarely the airtime alone. It is the commercial itself, the frequency needed to land a message, and the fact that the asset disappears when the flight ends. A YouTube channel works the other way: the content keeps earning views long after it is published, and every video builds an audience you own. That is why we look at cost per useful outcome, not cost per spot.
Does TV advertising work better than YouTube? Payback speed and attention
TV is a slow burner. Profit Ability 2 found 58% of advertising’s profit arrives after the first 13 weeks (Thinkbox, Profit Ability 2). Look only at the first week and the ranking changes: generic search paid back 30.5% of its total profit, linear TV 20.5% and paid social 15.1% (Ebiquity, Profit Ability 2 press release). Judge TV on a one month dashboard and it will look worse than it is.
Share of total profit paid back within the first week
TV is also more predictable. Thinkbox reports TV’s standard deviation of ROI is below 50%, while paid social and online display can vary by as much as plus or minus 90% (Thinkbox, TV gives low risk, predictable results). For a brand that needs a reliable sales base, that consistency has real value.
On attention, the picture is more even. Adelaide’s attention scores, reported by eMarketer in March 2026, put YouTube at 64.3 out of 100, connected TV at 63.4 and linear TV at 53.9 (eMarketer, citing Adelaide). This is vendor research and attention is still an immature metric, but it undermines the idea that YouTube is a distracted, second rate screen.
Attention score out of 100, by video environment
When TV is worth it and when YouTube wins
Put the evidence together and a clear pattern emerges. TV is worth it when you need mass reach quickly, your buyers skew older, you have the budget to sustain frequency, and you can wait months for the payback. YouTube wins when your audience is under 35, when you want to show up on the TV screen without TV prices, and when you want an asset that compounds instead of an ad that expires. We made the long term case for owned YouTube channels in why YouTube is replacing TV; this report is the more balanced view.
| Your situation | Lean towards | Why |
|---|---|---|
| National launch, mass market product, buyers over 45 | TV | Fastest route to broad reach; strongest ROI evidence |
| Audience under 35 | YouTube | Linear reach among 16 to 24s is down to 26% a week |
| Budget under £50k | YouTube first, test TV via self serve | Owned content keeps working after the spend stops |
| Need predictable short term sales | TV plus search | Lower ROI variance; search pays back fastest |
| Building long term brand authority | Both | TV for fame, YouTube for depth and repeat viewing |
| Need proof before scaling | YouTube | Granular analytics from day one |
Advertain guidance based on the data in this report. Every brand is different.
The question is no longer TV or YouTube. YouTube is TV now. The brands that win plan for the screen and the audience, not the channel label.
A practical plan: how to split TV and YouTube in 2026
This is the playbook we use with brands deciding where the next pound goes.
- Start with the audience, not the channel. Pull your buyer age profile. If most buyers are under 35, linear TV will struggle to reach them efficiently.
- Measure the right outcomes. Judge TV over 6 to 24 months, not weeks. Track brand awareness and share of search alongside sales; our guide to how to measure brand awareness sets out the methods.
- Build the always on layer on YouTube. A brand channel with a recurring series gives you a home for long form storytelling that viewers increasingly watch on the TV set. If you are starting from zero, follow our guide on how to start a YouTube channel for business.
- Add TV for bursts of fame. Use TV around launches and peak seasons when you need reach fast, and buy in cheaper months where you can.
- Make the creative work on both screens. Shoot once with both formats in mind: a 30 second spot for TV and longer episodes for YouTube.
- Review quarterly. Read your YouTube data properly (our YouTube analytics guide explains the metrics) and shift budget towards whatever is compounding.
This is the approach behind our work for brands including L’Oreal, Red Bull, Gymshark and Formula E, where content built for YouTube, Instagram and TikTok has delivered more than 7 million views for Formula E alone. It also works from a standing start: we took Paul Ribot from 0 to 30,000 subscribers in 75 days. You can see more in our work, and if influencer budgets are part of the same debate, our report on whether influencer marketing is dead covers that side.
Frequently asked questions
Is TV advertising still effective?
Yes. The Profit Ability 2 study found TV generated 54.7% of all advertising profit in the UK and returned £5.61 per £1 over 24 months. Its effectiveness among younger audiences is falling as live viewing declines, and the study is funded by the TV industry.
Is TV advertising dead?
No. 70% of the UK still watches broadcaster content every week. But linear viewing fell 12% in 2025 and only 26% of 16 to 24s watch linear TV weekly, so TV is becoming an older, smaller channel rather than disappearing.
How much does TV advertising cost in the UK?
It varies by audience, channel and season. In 2025, 598 UK advertisers spent under £50,000 and half spent under £250,000, while some self serve platforms now have no minimum spend. A 60 second spot costs roughly twice a 30 second spot.
Is YouTube advertising better than TV advertising?
Neither is better for every brand. TV shows higher long term ROI in industry econometrics, while YouTube reaches 94% of UK online adults, wins younger viewers and scores higher on attention in vendor studies. Most brands get the best result by using both.
Is TV advertising worth it for small businesses?
It can be, especially with self serve and addressable TV. Hundreds of UK advertisers spend under £25,000 a year. For most small brands, though, a YouTube channel is the lower risk first step because the content keeps working after the spend stops.
Want help deciding where your next pound should go? Talk to us.
