BBC Three HD Wednesday

A round-up of the day's news

Steve Backshall continues his journey in the rainforests of Brazil, where he searches for piranha and encounters one of the most venomous snakes in the world

Steve Backshall continues his journey in the rainforests of Brazil, searching for a tarantula to add to his list and witnessing the spectacle of a colony of army ants on the move

Beauty empire founder Susie Ma joins the Dragons to hear pitches for a money-saving app, home-baking kits, an AI-powered cat flap and a fresh take on composting toilets

Lord Sugar tasks the candidates with turning ingredients into profit. Under the watchful eye of aides Karren Brady and Tim Campbell, the teams vie to emerge victorious

Angela Scanlon and guests examine he candidates' performances, and analyse the task, the boardrooms and the firings. Plus, a chat with the next person to leave the process

Lucy confronts Stephen about what she found at Macy's memorial

The group take a trip to Evan's lake house to celebrate his 21st birthday

Pippa has complicated feelings after Wrigley meets her dad and Lucy makes a decision to protect Stephen

After a drunken mistake, Nina must battle a number of different challenges to try to make up fro her error, but the damage may already have been done despite her best efforts

Part one of two. Tir Dhondy reveals the realities behind modern Las Vegas. The first episode explores the risk of crime faced by tourists and visits a pool party

Part two of two. Tir Dhondy goes further into the underbelly of Las Vegas to investigate how the reinvention of the city to pull in a new generation of visitors is affecting locals

The queens tackle the girl group challenge with a space-themed twist. Drag Race superfan and chart topper Rag'n'Bone Man drops in to give the queens a masterclass in vocals