It is displayed at the same time as the master ad and offers the user a spot to click.
It can continue to be displayed after the master ad has finished playing.
[7] Companion ads are also used on connected TVs as a new way for brands and advertisers to engage deeper with the TV viewers.
[8] In that context, the companion ad is clicked with the remote controller instead of the mouse (PC) or finger (mobile).
Services like Roku also support inserting companion ads on TVs through set-top boxes.