Clare Balding will take a look ahead to the Olympics in the company of some of the most famous Olympians of all time. Sir Chris Hoy, Sir Steve Redgrave and Michael Johnson will give us their thoughts on who are the ones to watch and what events will be the most hotly contested.
We'll also hear from some of Team GB's gold medal hopes including Jessica Ennis-Hill, Mo Farah, and Sir Bradley Wiggins.
The Opening Ceremony itself begins at 11.40pm and will be shown live on BBC1, if you fancy staying up.
Rio 2106, BBC1, 8.30pm
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