A channel trailer plays automatically to people who land on your channel page and have not subscribed. They arrived from a video they liked and are deciding, in about ten seconds, whether you are worth a follow. The Channel Trailer Script tool writes a 60–90 second script built for that moment: hook, value proposition, proof, single ask — in three tones so you can pick the one that sounds like you.
This guide explains the four-part structure and its timings, how to choose a tone, and what to put in the B-roll suggestions if you are a faceless or new channel.
The four-part structure
Hook (0–5s): a specific promise or provocation, not "welcome to my channel". Value proposition (5–30s): who the channel is for, what they get, and how often. Social proof (30–50s): results, numbers, a viewer quote, or — if you are new — a demonstration of competence in ten seconds. CTA (50–60s): one ask, subscribe, with a reason tied to the next upload.
Trailers longer than 90 seconds lose most viewers before the ask. The script is timed so the subscribe request lands while the viewer is still watching.
Three tones
Energetic suits entertainment, challenge and Shorts-first channels — short sentences, fast cuts, music-led. Calm suits education, finance, wellness and craft — measured pace, longer shots, credibility first. Educational is a hybrid for tutorial channels: the value proposition becomes a mini-lesson that proves the channel is useful before asking for anything. Pick the tone that matches your best-performing video, not the one you wish you had.
B-roll for new and faceless channels
The B-roll list maps a visual to each sentence. If you do not have a back catalogue, the list defaults to screen recordings, product close-ups, text-on-screen and stock-style shots that can be filmed in an afternoon. A trailer with three real clips of your actual content beats one with beautiful stock footage of someone else's.
Tips
- Describe your target viewer in one sentence with a problem: "people who bought an espresso machine and are disappointed with their shots". The value proposition writes itself from that.
- Update the trailer every six months or whenever your upload schedule changes. A trailer promising weekly uploads on a channel that went monthly costs subscribers.
- Set a different video as the trailer for returning subscribers (YouTube allows this). The script tool can produce a "featured video" intro for that slot on a second run.
Common mistakes
- Opening with your name and a greeting — The viewer already sees your channel name. Spend the first five seconds on them, not you.
- Listing every topic you cover — Breadth reads as lack of focus. Name the one thing you do best and imply the rest.
- No reason attached to the ask — "Subscribe" is weaker than "Subscribe — the grinder teardown is next Tuesday".
Worked example
Input: "Home espresso channel for people who own a machine but can't get café-quality shots; weekly uploads."
What the report returned: Calm tone selected. Hook: "Your espresso machine isn't the problem." 72-second script, proof section uses a before/after shot comparison, CTA tied to the weekly Thursday upload. B-roll: 9 shots, all filmable on a kitchen counter.
Frequently asked questions
How long should a channel trailer be?
Sixty to ninety seconds. The script targets 60–75 seconds spoken at a natural pace.
Can I use an existing video as a trailer?
You can, but a dedicated trailer converts better because it addresses the non-subscriber directly. Many channels use a trailer for new visitors and a best video for returning ones.
Does the trailer affect the algorithm?
Not directly. It affects subscriber conversion from channel page visits, which compounds over time.
I am a faceless channel — does this work?
Yes. Choose the educational or calm tone and follow the B-roll suggestions; voiceover trailers convert well when the visuals demonstrate the content.