UK confectionery and soft drinks giant Cadbury Schweppes will this weekend launch the Australian arm of its new chewing gum campaign with some well-placed TV advertising. The Australian campaign is costing A$7m (US$3.8m). Male and female versions of a 30-second TV advertisement are to air during Big Brother. The ads imply that the 'extreme freshness' of its new gum, Trebor 24-7, can help romance blossom.