BBC One's 30-year tradition of hosting Saturday morning children's programmes is under threat as the corporation experiments with a move to BBC Two.
Dick and Dom in Da Bungalow is set for a change of channels
The shows will be on BBC Two for three months from January, with executives considering a permanent switch.
The move aims to "iron out a scheduling anomaly" caused by big news stories and national events being screened on BBC One, said a BBC spokeswoman.
It may end a tradition which began with the Multi-Coloured Swap Shop in 1976.
The channel's Saturday morning output has also included Saturday Superstore with Mike Read and Live and Kicking, which was fronted by Andi Peters and Emma Forbes.
During the three-month trial, BBC One's Saturday morning schedule, including Dick and Dom in Da Bungalow and Top Of The Pops Reloaded, will move to BBC Two.
BBC Two's Saturday morning schedule, which includes Breakfast and Saturday Kitchen, will move the other way.
A spokeswoman said BBC One's Saturday programmes changed channel five times this year to make way for coverage of the Prince of Wales's wedding and reports following the London bombings.
Sporting events planned for next summer, including the football World Cup, could also disrupt programmes, said the BBC.
"On other days of the week, children's programmes are on BBC Two," the spokeswoman said.
"If the trial works and viewing remains robust, we will look at doing it permanently to try and find a permanent home for children's programming on Saturday morning."
She added it was not about "performance figures" and that children's programmes were not being relegated.
"It's about trying to provide our viewers with consistency so they know where to find our programmes," she said.