From the NYTimes:

But public relations executives said that the government distribution of prepared news segments without on-air disclosures of their origin was a bipartisan practice that predated the Bush administration.
“The Clinton administration was probably even more active than the Bush administration” in distributing news segments promoting its policies, said Laurence Moskowitz, chairman and chief executive of Medialink, a major producer of promotional news segments. After the Government Accountability Office decision last spring, he said, his firm began advising government clients to disclose each tape’s nature in its script.

But was there money involved (maybe they saw no need)?