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Doctor Who fans will have to wait a little bit longer to watch the

from the sixties after the BBC postponed a press conference to announce the details.

BBC worldwide were hoping to announce details of the exact lost episodes that have been found to the press tomorrow with a view to them being available to watch on Wednesday.

But a BBC spokesman admitted today they were “not quite ready” and the press conference has now been rescheduled for the end of the week.

A Doctor Who insider added: “With all the excitement in the last few days about the lost episodes we are really keen to get the information out, but there are a few delays.

"We want everything to be ready and for this announcement to excite fans so they will have to wait a few days longer.

“They have been waiting nearly 50 years for this, so a couple of days shouldn't make any difference.”

(Image: Mirrorpix)

The BBC has asked the Mirror not to reveal the new details of the London press conference, but fans should find out which episodes have been discovered by the end of the week.

Rumours that up to 100 old episodes have been recovered have circulated for months.

The BBC programmes from the 1960s – featuring the first two doctors William Hartnell and Patrick Troughton – vanished after the Beeb flogged off a load of old footage and wiped copies or lost them.

One suggestion at the weekend was that episodes have been unearthed at the Ethiopian Radio and Television Agency.

In June it was suggested that a company called Television International Enterprises Archives had found up to 90 episodes in Sierra Leone.

A BBC spokesman played down weekend reports of more than 100 episodes being found saying that was not accurate, but when asked if there were some episodes to announce this week he admitted: “There is a connection.”

Previously when asked Philip Fleming, Head of Communications, Brands, Content & Digital, BBC Worldwide said: “There are always rumours and speculation about Doctor Who missing episodes being discovered, however we cannot confirm any new finds.