TV Advert Production: How a Commercial Gets From Brief to Broadcast

Author : Max Delaney | Published On : 18 Sep 2026

 

Thirty seconds isn’t very long.

It’s enough time to make somebody laugh, introduce a product, tell a tiny story or lodge a particularly irritating jingle in their head for the next twenty years. What isn’t immediately obvious when you watch a finished TV advert is just how much work can go into creating those thirty seconds.

A television commercial might involve weeks of creative development, casting, location scouting, production design and pre-production before anybody switches on a camera. After filming, there is editing, grading, sound, music, visual effects, compliance and technical delivery to deal with before the broadcaster can actually put it on air.

For a marketer commissioning their first commercial, here’s how TV advert production actually works.

It starts with what the advert needs to achieve

Before writing a script, you need to understand the job.

Are you launching something new? Trying to increase awareness of an existing brand? Introducing a product people don’t immediately understand? Driving a particular offer? Or simply trying to make sure people remember your name when they eventually enter the category?

Those objectives can lead to very different commercials.

The audience matters too. A national consumer campaign aimed at millions of households creates a different brief from an advert targeting a particular region or demographic. The media plan should therefore be part of the creative conversation rather than something that happens after the film has been made.

If you know who you’re speaking to, where they’re going to encounter the advert and what you’d like them to remember afterwards, you’ve got the beginnings of a useful brief.

Developing the creative idea

Once the objective is clear, you need an idea.

Sometimes that comes from a creative advertising agency, with a production company brought in to execute an already developed concept. In other cases, a ⁠TV commercial agency can work directly with the brand to develop the concept, script and production approach.

The creative development stage might produce several routes before one is selected. Treatments, moodboards, scripts, storyboards and animatics can then gradually turn the chosen idea into something everybody understands.

This is also where reality needs to enter the conversation.

An idea involving a beach in Barbados, 200 extras and a performing elephant might be magnificent. If the available production budget is £25,000 and the advert needs to be on television in three weeks, some creative adjustment may be required.

Good commercial production isn’t about making every idea enormous. It’s about finding the most effective way of executing the idea within the money and time actually available.

Get Clearcast involved before you film

This is one of the biggest differences between producing a television commercial and making an ordinary online film.

For commercials appearing on participating UK broadcasters, clearance generally runs alongside production through Clearcast. Its current process has three stages: script, rough cut and final clocked TVC. Clearcast recommends beginning early and allowing at least two weeks before the intended air date.

At script stage, you’re not simply submitting the dialogue. The submission should describe the visuals, voiceover and onscreen text, alongside substantiation for claims made in the commercial. Complex scientific or technical claims can require additional review.

That’s why clearance belongs near the beginning of the production process.

Finding out that a line needs changing while it’s still sitting in a Word document is manageable. Finding out after you’ve hired the actors, built a kitchen and filmed somebody saying it 17 times is rather less convenient.

What claims can you make in a TV advert?

This is where things can become more complicated.

Saying your product is the UK’s favourite, twice as effective, clinically proven or used by more professionals may sound like perfectly ordinary advertising language, but objective claims generally need evidence behind them.

UK linear television advertising has to comply with the BCAP Code. Clearcast checks scripts against those rules and may ask advertisers to provide substantiation for claims before approving them.

The ⁠ASA’s UK Code of Broadcast Advertising is therefore useful reading if you’re entering television advertising for the first time, particularly if you’re working in areas such as health, food, finance, alcohol or products aimed at children.

Compliance doesn’t mean adverts need to become boring. It means the creative team needs to understand what can actually be said before building an idea around it.

How much does it cost to produce a TV advert?

There isn’t a standard price because there isn’t a standard TV commercial.

One advert might feature a single performer in an existing location and be filmed in a day. Another could require several sets, professional actors, specialist camera equipment, choreography, visual effects and three days of filming.

The main production costs generally come from people, time and complexity.

Casting recognised talent costs more than using unknown actors. Building a set costs more than filming in an existing room. Shooting for three days costs more than shooting for one. A photorealistic CGI dinosaur is, regrettably, more expensive than not having a photorealistic CGI dinosaur.

There’s also an important distinction between production budget and media budget. The money spent making the commercial isn’t the same money used to buy the airtime.

If you’re trying to understand ⁠how much does it cost to advertise on TV, you therefore need to consider both sides of the equation. A modestly produced commercial could support a substantial media campaign, while an ambitious production might be used across television, connected TV, social, cinema and digital advertising.

The right balance depends on the campaign.

Pre-production is where most problems should be solved

Once the creative is approved, pre-production begins in earnest.

Locations need to be found. Actors need casting. Sets might need designing and building. Wardrobe, props, vehicles and specialist equipment need arranging. The director and cinematographer need to work out how the advert will be shot, while the producer somehow needs to fit all of it into the available schedule.

On a commercial, this planning can become extremely detailed because shoot days are expensive.

Storyboards and shot lists help establish exactly what needs to be captured. Location recces reveal practical problems before the crew arrives. Casting sessions allow the director and client to see how different performers interpret the material.

Larger productions may also hold a pre-production meeting, usually known simply as the PPM, where the key creative and practical decisions are presented to the client before filming.

The aim is to remove as much uncertainty as possible.

There will still be surprises on the day. Film production enjoys surprises.

You just don’t want the surprise to be discovering that nobody booked the location.

Casting matters more than people sometimes realise

Casting can completely change a commercial.

Two actors can deliver exactly the same line and create entirely different adverts. One performance might make the brand feel warm and charming, another dry and understated, another completely ridiculous.

This is why commercial casting isn’t simply about finding somebody who looks like the person described in the script. You’re looking for somebody who can carry the tone of the idea.

Chemistry becomes particularly important where performers are supposed to be couples, families, friends or colleagues. Sometimes auditions or callbacks are used to try combinations together before making the final decision.

And if the commercial includes dialogue, listen as well as look. The face isn’t the only thing you’re casting.

Building the right production crew

Commercial crews can vary enormously in size.

A relatively contained production might involve a producer, director, director of photography, camera team, lighting crew, sound recordist, production designer, make-up artist and production assistants.

A larger commercial can expand into multiple departments with assistant directors, grips, sparks, art department, costume, hair and make-up, location teams, DITs, VFX supervision and specialist technicians.

Access to experienced ⁠Film crew hire London allows productions to build the team around the requirements of the particular commercial rather than using exactly the same crew structure for every job.

That’s important because different ideas need different expertise. A dialogue-heavy comedy depends heavily on performance and timing. A tabletop product commercial may need specialist macro cinematography and motion control. A car commercial introduces an entirely different collection of equipment, permissions and safety considerations.

The crew exists to serve the idea.

What happens on the shoot?

The shoot is where weeks of preparation finally become pictures and sound.

The assistant director generally keeps the day moving according to the schedule, while the director concentrates on performance and the creative execution. The cinematographer and camera, lighting and grip departments create the visual approach, while art department, wardrobe and make-up look after what appears in front of the lens.

Client and agency representatives may also be present, usually watching takes on monitors away from the camera.

The apparently excessive amount of preparation suddenly makes sense here. Commercials can require a surprising number of setups for a very short finished film, and every department needs to know what happens next.

A thirty-second advert might take two days to shoot.

Nobody on set finds this strange.

Shoot for the cutdowns too

It’s increasingly unusual for a commercial production to create only one 30-second television master.

There might also be 20, 15, 10 and 6-second versions, vertical social edits, connected TV versions, online films and still photography required from the same campaign.

Those aren’t always created successfully by simply chopping pieces out of the main commercial.

If a ten-second cutdown is important, it should ideally be considered during scripting and filming. Perhaps it needs an alternative opening, a shorter performance or a product shot that doesn’t appear in the main version.

Social formats deserve the same consideration. If important action happens on opposite sides of a widescreen composition, converting the shot to 9:16 later could prove entertaining for all the wrong reasons.

Know your deliverables before you shoot them.

The edit is where the commercial finds its rhythm

Once filming is complete, the editor begins assembling the advert.

This is where tiny differences become surprisingly important. Holding a reaction for another eight frames can make a joke work. Removing half a second can make a performance feel sharper. Moving the product reveal can completely change the structure of the commercial.

Thirty seconds gives an editor very little room for passengers.

The first edit will normally go through several rounds of review before picture lock. Music, graphics, visual effects and sound design can develop alongside it, depending on the production.

This is also the stage where the rough cut can be submitted to Clearcast. Clearcast describes rough-cut submission as recommended rather than mandatory, because it provides an opportunity to identify compliance issues, legal-text problems and possible scheduling restrictions before the final commercial is completed.

That can save considerably more expensive corrections later.

Colour, sound and VFX make an enormous difference

A commercial isn’t finished when the edit is approved.

Colour grading creates consistency between shots and establishes the final visual character of the film. Visual effects might remove unwanted objects, extend locations, composite products or create entire elements that never existed during filming.

Sound receives similar attention. Dialogue can be cleaned, effects added and atmospheres constructed around the pictures. Music may come from an existing library, be licensed from a known artist or be composed specifically for the campaign.

These stages are easy to underestimate because good finishing shouldn’t necessarily announce itself.

You probably won’t watch a commercial and think, excellent removal of that fire exit sign.

But you’d certainly notice if it was still there.

The final advert has technical requirements too

A finished television commercial isn’t simply exported as an ordinary MP4 and emailed to the broadcaster.

For Clearcast’s final stage, the final clocked TVC is submitted through The Library. Automated quality-control checks include duration, sound and photosensitive-epilepsy checks before the commercial receives its final compliance review. Once approved, it can be delivered to broadcasters through the chosen delivery supplier.

This is another reason to use people familiar with television production. Broadcast delivery has its own terminology and technical requirements, and somebody needs to take responsibility for getting the finished commercial from the edit suite onto the broadcaster’s system correctly.

The glamorous world of advertising eventually ends with someone checking a file specification.

How long does TV advert production take?

Again, it depends enormously on the idea.

A straightforward commercial can be produced relatively quickly, particularly where the creative is already established. Something involving extensive casting, complicated locations, set construction or visual effects naturally requires more time.

Clearance needs to be factored into that schedule as well. Clearcast currently recommends allowing at least two weeks, with additional time potentially required where scripts contain complex claims or substantial substantiation.

The best approach is to start with the intended transmission date and work backwards.

Post-production needs enough time. The shoot needs enough time. Pre-production needs enough time. Creative development and clearance need enough time.

Everything can be compressed when absolutely necessary, but every day removed from the schedule tends to remove options with it.

The production is only half of television advertising

Finally, you need somebody to actually see the advert.

Media planning determines which channels, programmes, audiences, regions and time periods the campaign reaches. That could involve traditional linear television alongside broadcaster streaming and connected TV.

Production and media should complement each other. If the campaign is heavily targeted towards a particular audience, the creative should understand who that audience is. If several durations are being bought, those versions need to exist.

There’s little point making a beautiful advert and then discovering the media plan requires an asset you didn’t produce.

A good TV commercial makes thirty seconds feel simple

That’s really the strange thing about television advertising.

The production process can involve dozens of people, hundreds of decisions and weeks of work. There may be casting sessions, compliance documents, location recces, storyboards, call sheets, edit reviews, colour sessions and final technical checks behind something that appears on screen for half a minute.

The audience shouldn’t need to know any of that.

They should see an idea they immediately understand, enjoy the next few seconds and, ideally, remember which brand was responsible afterwards.

Making thirty seconds feel effortless takes quite a lot of effort.