We'll never know!
A bit of translation: 580,000 people started watching the premiere of LOST on ABC.com, whether they watched for 30 seconds, a minute or the whole episode -- we don't know, and because they don't want you to be able to compute engagement they also do not include "average time viewed per stream" metrics. Unfortunately that's really the only way to begin comparing it to the viewing on TV Tuesday night. The 12.1 million average TV viewers means there was over 725 million minutes of engagement (12.1 million times 60 minute duration as measured for TV). Many more than 12.1 million watched at least part of the episode.
The 1.17 million full episode starts were for any of the LOST episodes available (last year's finale, etc) and not just the premiere. But it looks like these numbers do not factor in Hulu (the episode is available on Hulu now , but I'm not sure if it was on Wednesday) and are only for ABC.com.
NETWORK SITE GARNERS DOUBLE-DIGIT, YEAR-OVER-YEAR GAINS IN UNIQUES & PAGE VIEWS
Following last Tuesday’s successful premiere on ABC where it ranked as the night’s No. 1 scripted TV show and was watched by over 12.1 million viewers, “Lost” drove record online viewing at ABC.com on Wednesday, with more than 580,000 episode starts of the final season’s premiere on the site, an increase of more than 34% over last season’s “Lost” premiere, according to internal data. Overall, Wednesday marked ABC.com’s highest full episode viewing this season with more than 1.17 million total full episode starts.
On Tuesday, leading up to the “Lost” Season 6 opener, ABC.com saw more than 1.8 million unique visitors and delivered over 7.4 million page views, a 15% and 43% increase, respectively over the previous year’s premiere date, based on data from Omniture.
Additionally, visitors to ABC.com logged more than 2.2 million video views of “Lost”-related short-form content on Tuesday, an increase of over 32% compared to last season.
Consistently one of the most-viewed series on ABC.com’s full-episode player, “Lost” continues to connect with fans across the web. This season, ABC.com offers highly-interactive, community-driven features including user-created Top 5 lists which allow fans to arrange, rank and share their personalized lists of show-related favorites; and Episode Commentary where fans can not only access commentaries created by series’ insiders, but also create and share their own commentaries for each episode. Additionally, the site will soon unveil a Fan Art Wall, an interactive area for fans to upload, view and rate “Lost”-themed art created by fellow fans, and also give fans the opportunity to participate in the Ultimate “Lost” Fan Promo Contest, providing users a “mash-up” tool to create and share their own “Lost” promos with a winning promo to be featured on-air.
“Lost” airs regularly Tuesdays (9:00-10:00 p.m., ET) on ABC. The series’ finale is set to air as a primetime event on a special night on Sunday, May 23 from 9:00-11:00 p.m., ET. Preceding the finale will be a recap special from 8:00-9:00 p.m., ET.
As the online home of the ABC Television Network, ABC.com is dedicated to providing users with innovative ways to experience their favorite shows. In addition to the Emmy & Webby Award-winning ABC Full Episode Player, the site also offers the viewers of ABC’s hit series everything from games, blogs, community forums, photos and downloadables to new ABC Music Lounge and the ABC Store which provides fans access to a wide variety of unique ABC-related merchandise. ABC.com is available anytime, anywhere on mobile devices at m.abc.com.