Doctor Who could be time travelling for real this year – from Saturday nights to Sundays.
The show launched on a Saturday teatime in 1963 and while other slots have been tried over the decades it has always returned to its original position.
But in recent years the BBC series has struggled in the autumn ratings because Strictly Come Dancing forces it later into the evening, meaning the youngest fans lose out.
Viewing figures of 7.3million in 2014 dropped to 5.5million last year.
The next series, in which Jodie Whittaker makes her debut as the Time Lord, is also the first for new show runner Chris Chibnall and insiders say pushing the show back 24 hours may prove attractive.
Our on-set spy reveals: “On Saturdays everything has to fit around Strictly.
“Moving Doctor Who to a Sunday could make perfect sense. It is a serious option.”
The source adds: “Chris is taking Doctor Who apart to give it a revamp. The only things viewers will immediately recognise are the sonic screwdriver, the TARDIS and the theme tune.”