ABC Family’s new series Pretty Little Liars got off to a solid start last night. It drew 2.5 million viewers, lower than the series debut of The Secret Life of the American Teenager (2.8 million) but matching the opener of Make It Or Break It. What’s more, Pretty Little Liars ranked as the highest-rated ABC Family series premiere ever in most younger demos, including adults 18-34 (837,000), viewers 12-34 (1.7 million) and teens (904,000).