Complex sentence: If there were no videotape machines available on a given day, then a telerecording would be made-there is evidence to suggest that the children's magazine programme "Blue Peter" was occasionally being telerecorded as late as 1985.
Split into simpler sentences: If there were no videotape machines available on a given day, then a telerecording would be made. There is evidence to suggest that the children's magazine programme "Blue Peter" was occasionally being telerecorded as late as 1985.