The government has announced the names of eight members of the BBC Trust, the body which replaces the corporation's Board of Governors on 1 January 2007.
Mr Liddiment commissioned ITV programmes such as Pop Idol
The new trustees include former director of programmes at ITV, David Liddiment, and former BBC director of policy and planning Patricia Hodgson
The trustees will join three current governors and BBC chairman Michael Grade on the new board.
The eight new members have been appointed for a four-year term.
It is intended that the Trust be more removed from BBC management and more accountable to licence fee payers.
The trustees will earn between £35,000 and £40,000 per annum for working two days a week.
Michael Grade will receive £140,000 a year for a four-day week, compared to a £82,946 salary in 2005-6.
Aside from Mr Liddiment and Ms Hodgson, the six new trustees are Chitra Bharucha, Diane Coyle, Alison Hastings, Rotha Johnston, Janet Lewis-Jones and Mehmuda Mian Pritchard.
Michael Grade said the BBC Trust would have a "very different role from that of the Board of Governors it replaces".
"For the first time, the public will help set the strategic agenda for its BBC," he said.
The new trustees join Mr Grade, Dermot Gleeson, Jeremy Peat and Richard Tait, who are currently on the Board of Governors.
The Hutton Report in 2004 highlighted problems with the governors' dual role as both the corporation's champions and regulators.
The creation of the BBC Trust was announced in the last BBC Annual Report (2005 - 2006).
Michael Grade - chairman designate of the BBC Trust. Former BBC One and Channel 4 boss, now chairman of the BBC.
Dr Chitra Bharucha - vice chairman designate. Former consultant haematologist and former member of the ITC (Independent Television Commission). She now chairs the General Medical Council panels that decide on the fitness of doctors to practise medicine.
David Liddiment - producer of the Old Vic Theatre Company and former director of programmes at ITV. His programme commissions while at the network included Pop Idol, Ant and Dec's Saturday Night Takeaway and Cracker.
Diane Coyle - an economist, member of the Competition Commission and former economics editor of the Independent newspaper.
Alison Hastings - trustee for England. A former editor of the Newcastle Evening Chronicle and media consultant, her clients include Camelot, Liverpool City Council and the Press Complaints Commission.
Patricia Hodgson - former chief executive of the ITC and former director of policy and planning at the BBC. She began her career as a producer and independent journalist. Ms Hodgson is Principal of Newnham College, Cambridge.
Rotha Johnston - trustee for Northern Ireland. An entrepreneur in commerce and property, Ms Johnston is also a non-executive director of Allied Irish Bank (UK) plc.
Janet Lewis-Jones - trustee for Wales. Vice-President of the British Board of Film Classification and a former board member of S4C, she is a Welsh speaker and began her career as a lawyer.
Mehmuda Mian Pritchard - former lawyer in Birmingham. She is now a commissioner of the Independent Police Complaints Commission, London and South East Region.
Jeremy Peat - the BBC's National Governor of Scotland since January 2005. Mr Peat was the group chief economist at the Royal Bank of Scotland from 1993 to 2005. He is also Chairman of the BBC Pension Trustees.
Richard Tait CBE - editor-in-chief at ITN from 1995 to 2002. He is a professor of journalism and director of the centre of journalism studies at Cardiff University.
Dermot Gleeson - executive Chairman of MJ Gleeson Group plc. He was a director of the Housing Corporation from 1990 to 1995 and of the Construction Industry Board from 1995 to 2000.