“TV3’s HD natural disaster dramatisation, Eruption, scorched the competition last night when it won its 8.30pm two-hour slot in all of the key demographics”. Eruption snared a 27% share of not only TV3’s target audience, 18-49 year-olds, but also 25-54 and 18-39 year-olds, whereas TVNZ’s competition could muster only 10%-20% shares of these demos.