Safeword

Safeword (or SafeWord) is an American adaptation of the British series of the same name where famous friends become famous frenemies all for a laugh.

Premise
In each episode, celebrity guests will partner with comedians to play games in front of a live audience. In a friendly roast, the celebs are tasked with taking the heat, but they can stop the pain by using a "safeword".

British Version
The original British version hosted by Rick Edwards along with Katherine Ryan and David Morgan as Team Captains respectively airs on ITV2 since 23 July (July 23) 2015.

Links
Official Website

Article about the original British Version (courtesy of ukgameshows.com)