TV Airtime Buying in the UK: How It Works
TV airtime buying in the UK means turning a brief and a budget into a schedule of spots, negotiating the price of those spots with the broadcasters’ sales houses, and then checking that the audience you paid for was actually delivered. The price is set by negotiation, not a rate card, so two advertisers buying the same audience can pay very different amounts. Below is how we run the process end to end, and where money is usually lost.
How TV airtime is bought, planned and negotiated
UK airtime is traded mostly on audiences, not on individual spots. You buy impacts (one member of your target audience seeing one ad once, measured by BARB), and you pay for them at a cost per thousand impacts, or CPT. The sequence is the same for a first-time regional test and a national launch:
- Brief. Objective, target audience, geography, timing, creative lengths and how success will be judged.
- Audience. Choose the trading audience the airtime will be bought against.
- Budget and forecast. Estimate what the money buys in impacts, TVRs, reach and frequency at realistic prices.
- Negotiation. Agree price and terms with each sales house.
- Booking. Place spots, choosing fixed or pre-emptible, and any premium positions.
- Copy clearance. Get the ad cleared by Clearcast and delivered to broadcasters.
- Delivery tracking. Monitor impacts against BARB as the campaign runs, and adjust.
- Audit and reconciliation. Check what was delivered against what was bought, and claim anything owed.
Each step is covered below. For more on the channels themselves, see our pages on ITV, Channel 4 and Sky Media. Sales-house arrangements change, so always check who currently sells which channel’s airtime before you plan the negotiation.
Audience planning
The trading audience you pick sets the price of everything else. Broad audiences such as Adults are cheap per thousand because there are lots of them; narrow or hard-to-reach audiences cost far more. Using TheHub market price data published on our ITV1 CPT index, the ITV1 average market CPT for January to August 2026 was:
| Audience | ITV1 average market CPT, Jan–Aug 2026 | Change vs 2025 |
|---|---|---|
| Adults | £14.32 | +19.6% (from £11.97) |
| ABC1 Adults | £35.18 | +13.4% |
| Housewives with children | £245.03 | +27.4% |
| Men 16-34 | £636.70 | +4.5% |
These are average market prices. What an advertiser actually pays is usually less, depending on the deal. The point for planning is the ratio: a thousand ABC1 adults costs roughly two and a half times a thousand all adults. If your customer is ABC1 but you buy Adults, the schedule looks cheap on paper but a large share of the impacts reach people who will never buy.
So pick the narrowest audience that still describes your buyer and that the sales houses will trade on. Then check the plan’s reach against that audience, not just its CPT.
Cost forecasting
A forecast turns budget into delivery: budget divided by CPT, multiplied by a thousand, gives impacts; impacts divided by the audience universe gives TVRs. The skill is in choosing the CPT, because the average is only a starting point. What moves it:
- Season. Prices rise and fall through the year as demand changes. Q4 is the most expensive; January and summer are usually softer. See our seasonality guide.
- Events. Big sporting events redistribute demand. TheHub data shows the ITV1 Men 16-34 CPT fell about 37% year on year in June and July 2026 during the World Cup (£674 to £426 in June, £725 to £455 in July), because the tournament delivered huge male audiences.
- Spot length. Everything is priced against a 30″ base using spot-length factors: a 10″ is roughly 0.5 and a 60″ roughly 2.0 (approximate; each sales house publishes its own). A plan built on 10″s buys about twice as many spots as one on 30″s for the same money.
- Daypart mix and region. Peak costs more than daytime; regional prices vary, as our regional price variation page shows.
- Market inflation. The Adults CPT rising 19.6% year on year means last year’s budget buys noticeably fewer impacts this year. Forecast from current prices, not last year’s post-campaign report.
We forecast a range, not a single number, and say what would push delivery to the top or bottom of it. Our monthly TV market update tracks how prices are moving.
Commercial airtime negotiation
Each sales house prices airtime off its station average price (SAP), the average CPT it expects across the market, and negotiates individual deals against it. The main levers:
- Share deals. You commit a share of your total TV spend to a sales house in exchange for a discount. Big shares get better prices, but check that you’re not locking money into a channel that doesn’t suit the audience just to hit a share target.
- Audience deals. The sales house guarantees a CPT against an agreed audience. If it under-delivers, it owes you impacts. This is the protection most smaller advertisers should insist on.
- Discounts and conditions. Discounts are negotiated against conditions: timing, daypart mix, peak percentage, spot-length mix, first-time advertiser terms. Read the conditions as carefully as the headline discount; a deep discount with a tight peak restriction can deliver less than a smaller one without.
- Commitment. Committing early, or across the year, earns better terms than buying late in a tight month. It also costs flexibility, so agree in advance what happens if plans change.
Negotiating power comes partly from spend and partly from knowing the market price. Matt Way, one of our buyers, was previously an Investment Partner at EssenceMediacom, and we benchmark every deal against TheHub market data rather than against the sales house’s own view of the market.
Spot buying: fixed, pre-emptible and premium positions
Once the deal is agreed, spots get booked. Two decisions matter most.
Fixed or pre-emptible. A fixed spot is guaranteed in a specific break, at a premium. A pre-emptible spot is cheaper but can be moved or dropped if someone pays more. Fixed suits launches, sponsorship-adjacent moments and anything time-critical. Pre-emptible suits campaigns that care about cost and total delivery more than exact placement, which describes most DRTV campaigns.
Break position. First and last in break cost extra because more viewers are still watching when the break starts and when programmes resume. Whether that premium pays off depends on the campaign: often it does for a launch with strong creative, often it doesn’t for a long-running campaign. A cheap spot in the wrong break is still wasted money, and a premium spot in the wrong programme is worse.
Programme environment matters beyond the audience figures. Two spots delivering the same impacts are not equal if one sits in a big live event and the other in a repeat nobody is really watching. Check the actual programmes, not just the delivery forecast.
Copy clearance with Clearcast
Ads on UK commercial TV must be cleared by Clearcast before broadcast. Send the script before you shoot: problems caught at script stage cost nothing to fix, and problems caught on the finished film can mean a reshoot. Then submit the final copy for clearance.
Leave plenty of time. Clearance is not instant, and claims need supporting evidence: price comparisons, “best” or “number one” claims, health and financial claims, and anything in restricted categories such as gambling, alcohol, food and drink covered by HFSS rules, or financial products. Clearcast may also attach scheduling restrictions (for example keeping an ad away from children’s airtime), which the booking must then follow. Advertisers in gambling and other regulated categories should build extra time in. After clearance, the copy needs to be delivered to broadcasters to their technical specification ahead of the first airdate.
Campaign management and delivery tracking
Once the campaign is on air, delivery is tracked against BARB. We watch impacts delivered against the forecast by sales house, channel and daypart as the data comes in. When a sales house is behind, we push for spots to be moved into stronger breaks or added while the campaign is still live, because recovering delivery during the burst beats claiming compensation later.
Management also covers copy rotation (which version runs where), pre-empted spots and re-booking, schedule changes when programmes move, and keeping the spend split in line with the deal conditions. For response campaigns it adds weekly optimisation on cost per response.
Airtime audit and post-campaign reconciliation
This is where we find the most money for clients. A post-campaign audit checks what was delivered against what was bought: impacts against the agreed audience, CPT against the deal, peak percentage and spot-length mix against the conditions, and break positions against any premiums paid.
What the audit typically turns up:
- Under-delivery on audience deals. If a guaranteed CPT wasn’t met, the shortfall is owed, usually as compensating airtime. It has to be claimed.
- Premiums paid for positions not delivered. A first-in-break spot that ran mid-break should not be charged at a premium.
- Drift from the deal conditions. Too much off-peak where peak was agreed, or the wrong spot-length mix, which changes the effective price.
- Invoice errors. Spots charged that didn’t air, or charged at the wrong rate.
We run an independent airtime audit for advertisers who buy through another agency or direct with sales houses, as well as on our own campaigns. For how this fits with using an agency at all, see our TV media buying agency page.
Send us the plan or proposal and we’ll tell you what we’d change. Contact us here.
Questions
How is TV airtime bought in the UK?
Mostly by audience. Advertisers or their buyers negotiate a price per thousand impacts (CPT) against a target audience with each broadcaster’s sales house, book spots to deliver those impacts, and measure delivery using BARB data.
Can I buy TV airtime directly from broadcasters?
Some sales houses deal directly with advertisers, especially smaller ones and regional buyers. Buying through an independent buyer usually gets better terms and an audit of delivery, because the buyer benchmarks prices across the whole market.
What is the difference between fixed and pre-emptible spots?
A fixed spot is guaranteed in a specific break and costs more. A pre-emptible spot is cheaper but can be moved or dropped if another advertiser pays more for that position.
How long does Clearcast clearance take?
It varies with the complexity of the ad and its claims, so allow plenty of time before the first airdate. Submitting the script before production is the easiest way to avoid delays and reshoots.
What is a TV airtime audit?
A check after the campaign of what was actually delivered against what was bought: impacts, CPT, positions and deal conditions. It identifies under-delivery and billing errors that are owed back to the advertiser.
How much does TV airtime cost?
It depends on audience, channel, season and deal. As a reference, TheHub market data puts the ITV1 average market Adults CPT at £14.32 for January to August 2026; advertisers usually pay less than the average. Our TV advertising costs page covers budgets in more detail.