Harold Wilson and Edward Heath are two very different men equally overlooked by history, but they were the political titans of the era in which Britain changed for ever. For ten years they faced each other in the House of Commons, and swapped in and out of Number Ten. They fought four general elections, three of which were amongst the most exciting of the century.

Twenty years ago the Liberal Party and the SDP united after a long and fraught courtship to form the Liberal Democrats. BBC Parliament tells the story of the protracted marriage negotiations.

A revealing one-off documentary that provides an inside view of how Tony Blair and former prime ministers - including Harold Wilson, Margaret Thatcher and John Major - have run their cabinet, the highest decision-making body in the land. Through candid interviews, rare archive footage and filming inside No 10, presenter Michael Cockerell opens the door to the Government's own chamber of secrets as he seeks the answer to the question: is the notion of cabinet government an obsolete concept?

It begins with cheers but almost always ends in tears. Yet, as the election looms, competition for the top job grows ever more intense. Why? The hours are terrible, money so-so, job security non-existent. On the plus side, there's free accommodation in central London and probably more power over your country than any other leader in the western world. With the help of the present and previous incumbents, Michael Cockerell offers the first "how to" guide to the job of prime minister.

Documentary showing the many travails of the UK Labour Party during its long period in opposition from 1979 and through the 1980s and 1990s.

This topical debate series based on Any Questions? typically features politicians from at least the three major political parties as well as other public figures who answer pre-selected questions put to them by a carefully selected audience.