On Air Technical Specs

All the technical information you need to know if you're creating or sending advertising copy to us.

Our channels

Channel 4 Traffic are responsible for commercial airtime on the following channels:

Channel 4

Channel 4, E4, More 4, Film 4, All 4


W, Dave, Alibi, Gold, Eden, Drama, Yesterday, UKTV Play

The Box Plus Network

4Music, Heat, Kiss, Kerrang!, Magic, Smash Hits, The Box

BT Sport

BT Sport 1, BT Sport 2, BT Sport Europe, BT Sport ESPN, BT Sport Showcase


HGTV, Really

Ad Specs

  • Download our latest ad spec document

    Download (PDF, 1.7MB)

    Technical delivery specification

  • Clearcast's advice for new superimposed text rules

    Download (PDF, 663.5KB)

    Do's and don'ts concerning the new superimposed text guidelines which come into effect on March 1st 2019

Ad Clearing

Commercials must conform to the current BCAP Television Advertising Standards Code. (Broadcast Committee of Advertising Practice). All commercials intended for transmission on any of the services listed above must be approved by Clearcast prior to broadcast.

Clearcast: +44 (0)20 7339 4700


We accept clock delivery through Adstream, Honeycomb or IMD to transmission sites. Please note that ESPN broadcast from Arqiva, not Redbee and will subsequently require a separate order placed for copy delivery.

Adstream: +44 (0)20 7539 8400

Peach +44 (0)20 7468 6868


For any queries or further clarification relating to the specification and delivery of copy, please contact: