Trouble at the Top

Bucks Fizz's Eurovision triumph kick-started three years of chart hits for the quartet, but a road accident, personal tribulations and legal trouble took their toll, and the group's fortunes dwindled. In 1996, lead singer Bobby Gee recruited David Van Day from eighties pop rivals Dollar, little realising how his band would be torn apart. Jim Carter narrates the tale of a feud that led to two rival Bucks Fizz bands touring the country and a judge deciding who owned the group brand.

A decade ago amid much fanfare, thrice-weekly Spain-set soap Eldorado was launched on BBC1. This is the story of how the multi-million-pound TV show was cancelled within a year.

Entrepreneur Michelle Mone and her husband developed the world's first cleavage-enhancing bra using liquid silicone gel. But, as their "Ultimo" creation captured public attention and scooped awards, rivals were fighting back. The documentary series follows Mone's turbulent crusade to sell her lingerie to a global, online market.

Piers Adam , 35, is a friend to the stars and has already established a successful chain of night spots, but his burning ambition remains unfulfilled. With the help of his old friend, designer Giles Baker , he is gambling his fortune in the hope that two new venues will become not just "superclubs" but also world-renowned merchandising brands. As opening nights approach and financial anxieties increase, cameras follow Adam to see whether his dream is realised. Producer James Callinan Postponed from 21 February

Billionaire John Caudwell is offering huge rewards in a competition inviting top young business talents to lead his mobile-phone firm into the future. As the hopefuls are whittled down to four "finalists", this film finds out what it takes to make it in this high-flying world.

Though they've never changed a nappy, Ben and Oliver Black have taken over a near-bankrupt nanny agency and set their sights on revolutionising the child-care industry. The business-dramas strand follows the brothers for a year to find out whether their plans bear fruit.