Notes for owners · Digital marketing
How to make an OTT advertisement
It plays on a television, nobody can click it, and the same viewer sees it six times in one evening. That decides almost everything about the film.
The GullySales team · Updated 21 Sept 2026 · 7 min read
An OTT advertisement plays on a television, in a room, to people who cannot click it, and it is bought by impressions like a digital ad. Those two facts pull in opposite directions, and most bad OTT creative is a digital film sent to a television or a television film sent to a phone. Decide first which screen you are making it for, then write for a viewer whose only possible action is to remember your name or to pick up the phone already in their hand.
You did not win the attention, you interrupted it
The episode stopped for you. On most ad-supported plans the viewer cannot skip, so you have the whole fifteen or twenty seconds, and you do not need the jolt that a skippable format demands.
So do not open loud. A shout in the first second makes somebody reach for the remote to lower the volume, and they lower it for the rest of your ad. Open at the level the programme was playing at, then say something.
The sound is on, which is the single biggest difference from a feed ad. You can carry the message in a voice and use the picture for the product, instead of burning every word into the frame.
Write for three metres, not for thirty centimetres
Television is read from across a room. Two lines of text at a time, in a size that looks absurd on your laptop, and about three seconds on screen for each. Prices and model numbers work on OTT where they fail on a hoarding, because the viewer is seated, but only at that size.
Keep the corners clear. The platform draws its own furniture over your frame: an advertisement label, a countdown, a progress bar, sometimes a skip button on the plans that allow one. Your logo and your web address belong away from the bottom edge and out of the lower right corner.
Then check it on the real thing. Cast it to a television, sit on the sofa where the family sits, and read it from there.
The QR is the only button you get
There is no click, so a QR code is the closest thing to a call to action anybody can act on. It earns its place when the viewer is on the sofa with a phone in hand, which is most evening viewing in an Indian home.
Four rules make it scannable. Big, on a plain light background. On screen for at least five seconds, which for a fifteen-second film means a quarter of it. No logo dropped into the middle of the pattern. The web address printed underneath in words, because plenty of people would rather type than aim.
And send it somewhere that matches. A QR that lands on a home page after a film about one project wastes the only action you were given.
The same viewer sees it six times tonight
This is the part that catches owners out. On television your spots are spread across a schedule. On OTT a family watching four episodes on a Sunday can be served the same twenty seconds after every one of them, and a long match delivers even more.
Two answers. Ask for a frequency cap in the plan, per viewer per day, and get the number in writing. Then make more than one cut: two or three edits of the same shoot, same voice, same ending, different middle. Rotate them.
Ask the platform whether your buy is landing on televisions or on phones, and in what proportion. A buy that turns out to be mostly mobile needs a version with larger type and a tighter crop, because a wide establishing shot on a six-inch screen is a grey rectangle.
Deliver it the way the platform asks
| What to fix before the edit is locked | Why it matters |
|---|---|
| Exact duration, to the frame | Platforms reject a 15.4-second file for a fifteen-second slot |
| The loudness target the platform specifies | Audio mixed for a cinema or a laptop is rejected or crushed on delivery |
| Resolution, frame rate, codec and maximum file size | Ad servers transcode, and a soft master gets softer |
| Title-safe area, and where the platform's own overlay sits | Decides where your logo and QR can live |
| Separate audio tracks per language, from the same picture | Cheaper than a second shoot, provided nobody is speaking to camera |
| Subtitle burn-in, or not | A television viewer with sound on does not need them; a phone viewer often does |
Ask the platform or the agency for the current specification sheet before the shoot, not after the edit. Specifications change quietly, and a rejected file costs you the first week of the flight.
The language of the show you interrupt
A Kannada film dropped into an English series feels like a wrong turn, and the reverse feels like a business that did not think the viewer was worth addressing. Most platforms let you target by the language of the content, so build one version per content language you are buying, with the same picture and a different track.
For example, a builder selling flats off Mysore Road might buy Kannada content across Bengaluru South and English content across the same postcodes, and run the same twenty seconds with two voices and two sets of on-screen lines. The media plan is one line. The creative is two files.
What to do next
Write the fifteen-second version first, then see whether twenty seconds is worth paying for, because most OTT scripts are a thirty-second idea squeezed in and made frantic. Check the platform specification, agree a frequency cap, and put the QR on screen long enough to be used.
The shoot and the edit are booked with the people who do that work. What GullySales runs is the brief, the connected TV and OTT advertising buy, and the check that the delivered file meets the platform specification. If you are weighing OTT against a regional television buy for the same budget, that is a media question before it is a creative one, and the free audit is where we would take it apart.