填空题
“This is a really exciting time — a new era is starting,” says
Peter Bazalgette, the chief creative officer of Endemol. He is referring to the
upsurge of interest in mobile television, a nascent industry at the intersection
of telecoms and media which offers new opportunities to device-makers, content
producers and mobile-network operators. And he is far from alone in his
enthusiasm.
Already, many mobile operators offer a selection of
television channels or individual shows, which are “streamed” across their
third-generation (3G) networks. 41. ______.
Meanwhile, Apple
Computer, which launched a video-capable version of its iPod portable
music-player in October, is striking deals with television networks to expand
the range of shows that can be purchased for viewing on the device, including
“Lost”, “Desperate Housewives” and “Law & Order”.
42. ______.
For a start, nobody really knows if consumers will pay for it, though surveys
suggest they like the idea. Informa, a consultancy, says there will be 125m
mobile-TV users by 2010. But many other mobile technologies inspired high hopes
and then failed to live up to expectations. And even if people do want TV on the
move, there is further uncertainty in two areas: technology and business
models.
At the moment, mobile TV is mostly streamed over 3G
networks. But sending an individual data stream to each viewer is inefficient
and will be unsustainable in the long run if mobile TV takes off. 43.
______.
44. ______. That suggests that some shows (such as
drama) better suit the download model, while others (such as live news, sports
or reality shows) are better suited to real-time transmission. The two
approaches will probably co-exist.
Just as there are several
competing mobile-TV technologies, there are also many possible business models.
Mobile operators might choose to build their own mobile-TV broadcast networks;
or they could form a consortium and build a shared network; or existing
broadcasters could build such networks.
The big question is
whether the broadcasters and mobile operators can agree how to divide the
spoils, assuming there are any. Broadcasters own the content, but mobile
operators generally control the handsets, and they do not always see eye to eye.
45.
Then there is the question of who will fund the production
of mobile-TV content: broadcasters, operators or advertisers? Again, the answer
is probably “all of the above”.
[A] So the general consensus is
that 3G streaming is a prelude to the construction of dedicated mobile-TV
broadcast networks, which transmit digital TV signals on entirely different
frequencies to those used for voice and data. There are three main standards:
DVB-H, favoured in Europe; DMB, which has been adopted in South Korea and Japan;
and MediaFLO, which is being rolled out in America. Watching TV using any of
these technologies requires a TV-capable handset, of course.
[B]
In contrast, watching downloaded TV programmes on an iPod or other portable
video player is already possible today. And unlike a programme streamed over 3G
or broadcast via a dedicated mobile-TV network, shows stored on an iPod can be
watched on. an underground train or in regions with patchy network
coverage.
[C] In South Korea, television is also sent to mobile
phones via satellite and terrestrial broadcast networks, which is far more
efficient than sending video across mobile networks. In Europe, the Italian arm
of 3, a mobile operator, recently acquired Channel 7, a television channel, with
a view to launching mobile-TV broadcasts in Italy in the second half of
2006.
[D] Despite all this activity, however, the prospects for
mobile TV are unclear.
[E] Assuming the technology and the
business models can be sorted out, there is still the tricky matter of
content.
[F] In South Korea, a consortium of broadcasters
launched a free-to-air DMB network last month, but the country’s mobile
operators were reluctant to provide their users with handsets able to receive
the broadcasts, since they were unwilling to undermine the prospects for their
own subscription-based mobile-TV services.
[G] The potential for
mobile TV is vast, in short — but so is the degree of uncertainty over how it
should actually be put into practice.