The appeal for information on the murder, which took place outside the presenter's house in Gowan Avenue, Fulham, in London, will open Tuesday's edition of the BBC crime-busting programme.

The item will focus on sightings in Fulham and Putney of men police would like to come forward to assist them in their investigation into the shooting of the broadcaster.

BBC Crime Correspondent Stephen Cape: "Detectives are hoping this reconstruction will jog people's memories"

Actors will be used in reconstructions aimed at jogging the memory of witnesses, but there will be no scenes featuring a Jill Dando lookalike.

Crimewatch executive producer Seetha Kumar said: "As a tribute to Jill we will not be opening the programme with titles or music.

"At the end of the programme there will be a brief and simple tribute to Jill from viewers, victims and the police - but otherwise it will be the usual public appeals programme.

"We have to remember there are other victims and families who need help."

Private funeral

Miss Dando's funeral will take place in her home town of Weston-super-Mare on Friday, 21 May.

Floral tributes left outside Miss Dando's house

The funeral cortege will take a three-mile route through the town to allow well-wishers to pay their respects before a private service at the Clarence Park Baptist Church, attended by about 100 people.

The chief mourners will be Miss Dando's retired printer father Jack, 81, her journalist brother Nigel, 47, and her fiancé, consultant gynaecologist Alan Farthing, 35.

The burial will be at the Ebdon Road Cemetery, where she will be laid to rest near her mother Jean, who died 13 years ago from leukaemia.

Only close family and her fiancé will attend the burial.

Anyone with information should phone the police incident room on 0181 246 0732 or Crimestoppers on 0800 555 111.