TV Guide BBC Four Wednesday

Seema Jaswal presents coverage of the evening session on day five from the Crucible Theatre in Sheffield, featuring the start of Neil Robertson's first-round match against a qualifier and the conclusion of Mark Selby's opener. Robertson and Selby were two of the highest profile opening-round casualties last year, losing to Chris Wakelin and Ben Woollaston respectively. With commentary and analysis from Steve Davis, Ken Doherty, Steven Hallworth, Stephen Hendry, John Parrott, Joe Perry, Dennis Taylor and Lee Walker

Anna finds herself forced to defend a dealer who sold her drugs, while Milly feels hurt and confused at being given the cold shoulder by O'Donnell. With Amita Dhiri and Daniela Nardini

As new £19million museum Aerospace Bristol prepares to open, this documentary takes a look at the life of the most glamorous plane ever built. Rare footage tells the forgotten row between the French and British governments over the name of Concorde, which threatened to derail the whole project. Engineers, flight technicians and frequent fliers tell the supersonic story, aided by politician Michael Heseltine and actress Joan Collins, while a former passenger recalls sharing an intimate moment with the Rolling Stones. Narrated by Sophie Okonedo

A look at how scientists are challenging traditional perceptions of sharks, with breakthroughs regarding the creatures' intelligence and social skills presenting them in a surprising new light. The programme also highlights some researchers' beliefs that studying the predators could help to solve some of the most pressing medical challenges of the 21st century. Narrated by Paul McGann