The Big Brother 2018 start date will reportedly be later than usual this summer.
Big Brother typically launches early June but so far there's been no word about this year's series' air date.
Last year the two shows launched on the same night and continued clashing most evenings.
The result was Big Brother's lowest viewing figures to date, something which Channel 5 will no doubt be wanting to avoid repeating.
According to the Daily Star newspaper, Big Brother may not launch until Love Island's new series is over.
The tabloid reports that Big Brother's air date may well not be until the final week of August or start of September.
"Big Brother bosses are open about the fact they don't want to take on Love Island in the ratings," a source explained. "They have revamped the casting team behind the scenes in a bid to shake things up in terms of casting new housemates.
"The show won't start until the end of August at the very earliest."
As yet, Love Island doesn't have a confirmed start date beyond June but it's rumoured to begin on June 4.
Meanwhile, sources have claimed that the latest series of Big Brother will see a big refresh.
An insider told the Daily Star on Sunday previously that the summer show will ditch "manipulative tasks" and allow drama to unfold "naturally".
They explained: "They want it to be a true social experiment because they realise they have lost that element along the way."
Alongside summer's Big Brother will be Celebrity Big Brother, which presumably will follow the 'civilian' show as usual
The two series are the latest in the current contract with Channel 5.
The channel hasn't confirmed if it'll renew the show beyond 2018 - but last week it was said it definitely won't return in its current form.