The debut of Discovery Channel's When Dinosaurs Roamed America
thundered to a 3.6 household rating July 15.
The two-hour special -- utilizing highly sophisticated animation and computer
graphics to take viewers back 150 million years and explore what North America
might have looked like when these behemoths strode across the land mass --
averaged some 5 million viewers from 8 p.m. to 10 p.m., according to Nielsen
The performance made the documentary the 10th-highest-rated
program in Discovery's history. The program's ancestor, Walking with
Dinosaurs, was the network's top-rated program and basic cable's
most-watched documentary ever. It scored an 8.0 rating, translating into 10.7
million viewers, over its three-hour premiere April 16, 2000.