Another set of figures in the report lend weight to Prensky's emphasis on the generational divide in his natives/immigrants/dinosaurs theory:

Finally the report also gives some raw data on usage of online tv and radio. The trend here clearly shows that participation is widening, but also that the rate of growth appears to be slowing. This perhaps hints at as yet unreached sections of TV and radio audiences, who are either economically disenfranchised from the digital revolution or simply satisfied with traditional forms of distribution.
You can view the full report here and fish out a couple of stats to add weight to your own arguments about the impact of the internet on the media industries.