Bacha. Season 3 After a long break, the series was revived in 2010 with a set of four apartments in the upmarket suburb of Vaucluse in Sydney being renovated and Scott Cam replacing Jamie Durie as host. The auction profits had a combined result of $ with only one property not selling at auction. Season 4 Season four saw six major changes to the format of The Block. The location has changed to Melbourne instead of Sydney. An initial elimination week sees eight couples reduced to four. Instead of a block of flats with four apartments, there are four separate houses next to one another. Contestants now have to renovate the exterior of their home, in addition to the interior. Instead of two one-hour-long episodes airing per week, six episodes now air per week with a mix of one-hour- and half-hour-length episodes. Shelley Craft has been introduced to help host special challenges where contestants can win extra cash and prizes for their houses. A weekly episode named "The Blocked: Unlocked" was introduced. Hosted by Shelley Craft, the episode shares a personal insight into The Block transformations as the couples guide viewers through their completed rooms. It also includes behind the scenes footage and footage not seen on the main show. Eight couples were initially selected, with four being eliminated and the other four being given keys to the houses. The four remaining teams are: Josh and Jenna – House 1 (Blue) Polly and Waz – House 2 (Yellow) Katrina and Amie – House 3 (Green) Rod and Tanya – House 4 (Red) The winners of The Block were Polly and Waz. They made $15,000 in profit, and won the $100,000 grand prize, due to the other three couples' houses being passed in. In this finale episode, Josh proposed to Jenna, his girlfriend for five years and partner on The Block. This was the worst auction in the history of The Block with auction profits having a combined result of $ due to only one property selling at auction. Polly and Waz were the only couple whose property sold at auction, with the other three failing to meet their reserve prices. Following the auction, Amie and Katrina's property sold for their exact reserve amount, meaning they would not take any winnings from appearing on The Block. Also, Rod and Tania's property sold for the highest profit on The Block, at $72,000