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PBS TechCon Examines Near Real-Time Content Delivery
4/1/2011
LAS VEGAS—Reminiscent of a Masterpiece
Theatre opener, 2011 may be “
the best of
times; the worst of times” for public broadcasters.
As fiscal conservatives sharpen the
blade and roll the budget guillotine into
Big Bird’s neighborhood, PBS technology
and operations managers gather for their
annual pre-NAB Technical Conference
(TechCon), April 6-8 at the MGM Grand
here. Scheduled long before the current
brouhaha, attendees will share
do more
with less strategies and charge “full-stream
ahead” into non-realtime program distribution.
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John McCoskey, PBS Chief Technical Officer
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For the PBS community, with some 350
independent member stations serving all
50 states, Puerto Rico, U.S. Virgin Islands,
Guam and American Samoa, “There’s not
a more important time for this gathering,”
says PBS Chief Technical Officer John Mc-
Coskey. “Collaborating, learning about successes
and challenges of other stations and
having focused communication with key
suppliers helps our members deal more
effectively with their limited resources...
we offer tutorials and best practices, new
technologies and case studies to address
both the common and unique technical
complexities our stations face.”
They must be doing something right,
early registration numbers are tracking
ahead of last year’s well attended conference.
NEXT GEN CONTENT DELIVERY
Responding to rising budget and political
pressures, McCoskey cites recent polls
that show PBS and its local member stations
are highly
trusted by the
public and considered
an excellent
taxpayer value.
“Our focus is to
continue working
closely with member
stations, other
national public
broadcasting organizations
and the
millions who support
public television
to make our case,” he said. “Station
technologists are a very forward-thinking
group; they’re not thinking about survival
as much as adapting their strategies to find
efficiencies, maximize grant opportunities
and meet their missions within resource
realities.” Towards that end, PBS is making
significant progress toward automating
their distribution infrastructure for traditional
broadcast, as well as for its growing
online and mobile services.
NGIS (Next Generation Interconnection
System)—a 10-year phased project to
streamline content delivery, sharing and
workflow has been in the TechCon spotlight
since its 2005 inception. “There was a
major focus on non-real-time [NRT] file distribution
last year, as we were in active development,”
McCoskey said. “This year it’s
mainstream, with multiple stations actively
testing. We’ve integrated NRT into the PBS
workflow and are doing a staged roll-out
across the system,. Deployment will be
centrally funded through a grant from CPB.
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PBS President Paula Kerger addresses TechCon 2010.
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“We have 16 alpha sites testing the system
and workflows
to identify gaps and
unknowns... some
are taking programs
to air, others operating
in parallel,” said
Jerry Butler, senior
director of the PBS
Interconnection Replacement
Office.
“Only 75 to 80-percent
of our content
will be distributed
via NRT; live and
near-live programming
will continue
in real time.” NRT is
intended to reduce
PBS’s reliance on, and more efficiently utilize,
costly transponder time, but “because
of public TV’s large geographic footprint,
satellite will be used for the foreseeable future,”
Butler concludes.
Alan Popkin, director of television engineering
for Los Angeles-based KLCS and
a long-time NRT proponent, is an alpha
tester. “As with any new technology, we’ve
had some initial successes and some setbacks;
each facility’s workflow is different,”
he said. “Everyone’s working diligently to
resolve issues and move ahead—the important
thing is we’re taking files to air!”
BUILDING BLOCKS
Among the NRT solution’s hardware
and software building block suppliers is
Myers Information Systems, the long-term
traffic and broadcast management software
provider to most PBS outlets. The
Myers team lent their expertise in station
traffic integration, metadata and station
workflow to make the NRT system more
efficient and better positioned to handle
future initiatives.
RadiantGrid’s faster-than-realtime
TrueGrid transcoding software was
tapped to handle the 40-plus hours of
daily programming PBS expects to transmit
when NRT is fully operational. Already
used at the their Media Operations Center,
RadiantGrid assures format compatibility
that enables each station to make use of
the program files delivered to them—with closed captions, an important consideration
for PBS.
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Alan Popkin of KLCS explains the NRT Station Services Platform at TechCon 2010.
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Elemental Technologies, a recently announced
addition to the NRT mix, was
chosen by RadiantGrid to leverage their
transcoding solution, using its massively
parallel video processing hardware to
perform the “heavy lifting” of encoding,
dramatically accelerating video file conversions,
including from H.264 to the
MPEG-2 format.
In addition to NGIS/NRT updates, attendees
can browse a “mini-NAB” of PBSfriendly
vendor exhibits or attend the
broad range of informative sessions, including
a strong IT track covering subjects
like “Deploying Windows 7 and Next Generation
Member Management Systems.”
Other tracks include
“Best Practices for Using
DSLRs in Video Production”
and the “Nuts
& Bolts of Transcoding.”
“Among our hotter
topics is Peer-to-Peer
Video File Exchange—a significant savings in
shipping costs when
stations send each other
files instead of tapes,”
notes McCoskey. For
the environmentally
conscientious, there’s
a session on building
green broadcast facilities
focusing on the recently
completed “Vegas
PBS” (WLVX) as an example.
It’s difficult to imagine a world without
Sesame Street’s kid-friendly, educational
characters, “PBS News Hour,” the
“Antique Road Show,” “Nova,” or the occasional
dose of stiff-upper-lip BBC comedy.
No doubt PBS has a fight on their hands
and some noses will be bloodied before
it’s over. However, on the technology side
at least, Big Bird’s house seems in order
and perhaps even a step or two ahead of
the budget hawks. Welcome back to Las
Vegas!
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