The BBC and Sky's video-on-demand TV services are both experiencing problems on iPhones and iPads.
The fault appears to be limited to iPlayer, Sky Go and Now TV on Apple's iOS platform and began last night.
Neither organisation was able to provide a full explanation at this time.
However, the director of Now TV suggested that altering a device's date setting would act as a temporary workaround.
"It's a Sky-wide issue, so it's both our app and Sky Go," Gidon Katz told the BBC.
"It appears to be related to a date configuration. So, if you reset your iOS device to yesterday's date it would work.
This could indicate that the issue is linked to an expired digital certificate.
However, changing the data setting can cause other problems. For example the owner becomes unable to access Apple's App Store.
It also fails to fix streams in either the iPlayer app or via the service's website.
The only comment from the BBC was: "We are aware of an issue affecting iOS."