Jon Rogers, Broadcast
The first instalment of the US import Heroes gave The Sci Fi Channel its highest ever audience with 467,000 people (3.2%) tuning in at 10pm.
The NBC drama, billed as Lost meets X-Men, was the most watched multichannel offering over the 60-minutes it was on air and gained a peak adult audience of 622,766 at 10.25pm.
The second edition of the show, which followed on at 11pm, also kept up the channel's strong position with an audience of 364,000 (5.2%) across the hour-long slot.
Over the two shows The Sci Fi Channel averaged an impressive 420,000 viewers.
The previous highest rated 'programme' for the channel, which has been broadcasting in the UK for more than 11 years, was the film Jurassic Park which aired in May 2002.
The two editions of Heroes also helped propel the channel to its highest ever peaktime share (8pm to midnight) of 2.4% which made it the most popular multichannel offering over these hours, usurping the usual dominance of channels such as ITV2, E4 and Sky One.
Sci Fi Channel managing director Nick Betts said: "This result is a spectacular way to start the series' run. It more than validates the belief we had in the show the moment we saw it at last year's LA Screenings and reflects the hard work everyone at Sci Fi has put into launching it."
Heroes has proved to be a big hit in the US viewers where the show regularly secures the NBC network audiences of over 15 million.
The show will make its terrestrial debut on BBC2 in July.
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