The BBC has set out key promises for all of its broadcast strands for the first time, commiting a record �450m to programming.

The corporation says the pledges are part of its "commitment to openness and accountability". They also come in the wake of proposed new regulations for all broadcasters.

Management will be held to account for performance by the BBC governors.

Director general Greg Dyke said the pledges were an opportunity to improve services in "virtually every area".

The pledges relate to television,radio,and online.

The BBC has pleged to spend a record �450m on programmes by 2003, and will make "significantly more" landmark series, such as Walking with Dinosaurs and The Way We Live Now.

The programming pledges for 2002/3 include:

BBC One

To be a mainstream channel based on a broad range, of high-quality British, popular programming

To keep repeats below 10% of peak-time programme hours

To nurture and develop the best talent

To broadcast a minimum of 570 hours of news programmes

To carry a minimum of 80 hours of current affairs

To broadcast a minimum of 45 hours of arts and music

To show a minimum of 650 hours of factual programmes

To broadcast at least 260 hours of sport

To show at least 400 hours of children's programmes

BBC Two

To make challenging, intelligent television by bringing ambition, creativity and innovation to everything it does

To introduce a "few, bigger, better" strategy

100 hours of news

230 hours of current affairs

500 hours of factual programming

200 hours of arts

BBC Four

To be the most intellectually and culturally enriching channel on television

A weekday nightly news programme

Documentaries of flair and distinction

A commitment to discussion and debate

To have the best arts programmes on television

To be the home of world cinema on television

To commission at least one substantial learning project a year

Cbeebies

To give a rich mix of programming for the under-sixes, with a quarter guaranteed to be new material

CBBC

To provide a rich array of related entertainment and in-depth information associated with children's favourite programmes

BBC News 24

To strengthen regional coverage

To find new ways to cover politics

To expand the interactive news service

BBCi - online and interactive TV services

To encourage digital take-up

To connect better with under-25s

To ensure more than 85% of budget is spent on content

To maximise reach among other under-served audiences

Radio 1

To broadcast 2,500 hours a year of specialist music

To broadcast 250 hours a year of news and current affairs

To offer a diverse range of presenters, reflecting Britain's ethnic mix

Radio 2

To maintain an unparalleled line-up of presenter talent

To relaunch the weekday lunchtime show - currently hosted by Jimmy Young - with a new format and presenter

To keep music at the heart of the output

To develop new comedy projects

Radio 3

Major commissions for new plays from leading writers

To relaunch the drive-time programme

New productions of classic plays

Increased commitment to poetry

Radio 4

To make 800 hours a year of original drama

300 hours of original comedy

Increase the impact of original drama

To remain the home of live cricket

Radio 5 Live

To commission debates on major news events

Stronger political coverage

Documentaries on a wide range of subjects