As Jonathan Ross returns to the small screen and radio following his suspension for his part in the Andrew Sachs controversy, Tonight investigates whether television and radio companies pushing the decency envelope too far or merely replicating the moral standards seen in our everyday lives. Jonathan Maitland explores the issue with the broadcasters at the sharp end of the criticism, including Jon Gaunt (who was sacked by Talksport Radio), and plays the so-called 'offensive material' to a viewers' jury to gauge whether TV bosses are letting performers go too far, while comedian Richard Herring experiments by performing a stand-up routine without swearing.