You're referring to the Australian reality TV series "I'm a Celebrity...Get Me Out of Here!" Australia, Season 1, also known as M4B (Mark 4 Bush). The show premiered on November 27, 2002, and was hosted by Grant Bowler.
The success of "I'm a Celebrity...Get Me Out of Here!" Australia led to many more seasons being produced, with a wide range of celebrities participating in the show. You're referring to the Australian reality TV series
Brendan's popularity on the show helped him win the public's vote, and he was crowned the winner of Season 1, taking home the $100,000 prize. After his win, he went on to pursue a career in media, including working as a sports commentator and radio host. taking home the $100