From Tuesday, 24 November, viewers will be able to use an Android mobile device, or Chrome internet browser on a computer, to stream All 4 content directly to their TV using a Chromecast dongle.
Chromecast is a £30 dongle that can be plugged into a non-smart TV that has an HMDI port. A mobile device can be used as a remote control.
Apple iPhone and iPad users will be able to use the service from the All 4 iOS app from mid-December.
Channel 4 is advertising the launch of All 4 on Chromecast with a TV campaign starring Phil Spencer, the presenter of Location, Location, Location, and Spencer Matthews, a cast member of Made in Chelsea.
"Spence and Spence" imagines the two men as flatmates who are sitting on a sofa and fighting over what to watch using Chromecast. Matthews plays up to his egotistical persona by persistently choosing to watch scenes from Made in Chelsea.
The 30-second spot was created by John Paul Smith at creative agency The Outfit and will break on Channel 4 tonight (20 November) during TFI Friday, which airs at 8pm. It was directed by Will Clark.
Chris Braithwaite, the agency principal at Channel 4, said: "We’ve enjoyed working very collaboratively with Google on this campaign and, with the help of Channel 4’s Spencers, the creative shows a new and innovative way to consume All 4 content."