Can you view those same channels live?
Is there an error code with that message, I'd think there should be.
Does it make any difference if those recordings are from the SD/HD variant?
ITV-HD is 103, SD 113. C4 104/141 outside London, C5 105/154
When did this problem start? Assuming you have a V6, can you use the branded apps under Home > Apps > All apps, OK? All 3 channels you mention should be covered in there.
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