Complex sentence: He promotes Australian cuisine through his cooking show (Dining Downunder) which has screened in 48 countries and which he funded, produced and hosted along with chefs, Benjamin Christie and Mark McCluskey.
Split into simpler sentences: He promotes Australian cuisine through his cooking show, Dining Downunder, which has screened in 48 countries. He funded, produced, and hosted this TV show, along with chefs, Benjamin Christie and Mark McCluskey.