Channel Ten has cancelled Australian Big Brother after seven series – despite introducing Pamela Anderson to the house last week.

According to the Herald Sun website, Anderson’s appearance last week gave it a much-needed ratings boost, with an audience of 1.4 million tuning in. But interest dropped again as soon as she left and Big Brother won’t return next year.

Ratings for this year’s series have at times been dire. One show in May was beaten by Treasurer Wayne Swan delivering the federal Budget on ABC TV. The daily shows have fallen to as few as 850,000 viewers.

While eviction shows have this year reached the million mark, such shows in Big Brother’s heyday would have attracted up to two million people.

A media commentator, Dr Vincent O’Donnell said. “I think the potential for surprise and novelty has gone and with the cast of people chosen they really have exhausted the possibilities for depth and emotion,” he said.

“I am not sure you can find sufficiently interesting and different people in Australia for the show to work – you may in Europe but not here.”