How to Go Viral With YouTube Strategist Seb Losardo

24 Sep, 2026
How to Go Viral With YouTube Strategist Seb Losardo

Our interview with former Top Gear boss Andy Wilman has passed 200,000 views on YouTube and around 400,000 elsewhere. Justin Crosby asks YouTube strategist Seb Losardo, who has helped grow John Nellis’s channel from 600,000 to 16 million subscribers, to explain why, and how to repeat it.

This one is worth watching the video for the visuals were discussing.

Seb explains how to find outlier guests, why an AI-generated thumbnail beat our usual design in an A/B test, and why he tells creators not to be led by their most vocal fans. He sets out his 40/30/30 rule for dividing effort between packaging, the intro and the rest of the video, an approach that turns traditional TV workflow on its head.

Seb will be speaking at the Digital Content Forum on 5 November at BFI Southbank.

TellyCast is produced by Spirit Studios and recorded in London.

Enrol on the TellyCast Digital Bootcamp

Buy tickets for the Digital Content Forum

Subscribe to the TellyCast YouTube channel for exclusive TV industry videos
Follow us on LinkedIn
Connect with Justin on LinkedIN
TellyCast videos on YouTube
TellyCast website
TellyCast insta
TellyCast Twitter
TellyCast TikTok

Transcripts for this episode will be available soon.

logo
Privacy Overview

We use cookies to improve your experience while you navigate through the website. Out of these cookies, the cookies that are categorised as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyse and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies, but opting out of some of these cookies may have an effect on your browsing experience.

Read our privacy notice here.