DTV in Canada, Consumers taking charge!
A Quick Backgrounder:
Canada, like the US, is involved in the
transition from Analogue Television to Digital Television. Television broadcasters face
the reality that they will ultimately lose their analogue broadcast spectrum, and must
convert their operations to new spectrum allocated for digital broadcasts.
The new spectrum designated allows for either one digital High Definition signal, or as
many as five separate Standard Definition digital channels to be broadcast in the same
amount of bandwidth required for a single channel in the analogue NTSC realm.
This transition is well underway in the US. Over 460 stations, including more than 50 in
Canadian border markets, have implemented digital broadcasting. CBS and ABC now have all
their prime time drama in HD this season, and all the US networks offer expanded HD
programming in addition to their SD content.
Canadian satellite companies and most of the cable companies are now marketing special set
top boxes, (STBs), that enable subscribers to receive High Definition programming.
City-TV, (owned by CHUM) has already announced plans to broadcast in HD, subject to
licence approval by the CRTC.
Canadian consumers have purchased well over 500,000 DTV compliant sets over the last 4
years, marketed by every major brand in Canada.
The Facts:
How will Consumers Receive DTV?
Over-the-Air DTV Broadcasts
Consumers will need to hook up an antenna to receive and display the signals on a Digital
Television with a built-in digital tuner. In most areas, consumers will be able to receive
their local stations digital broadcasts, and, depending on their location,
broadcasts from US border cities.
DTV by Cable or Satellite
These service providers rent or sell special digital DTV capable STBs to
process the signal. When connected to a DTV compliant set, the signal is passed directly
to the set for display. If connected to an analogue set, the box converts the digital
signal to analogue for display.
Will consumers be able to receive both analogue and digital broadcasts?
As the transition to DTV broadcast develops, broadcasters will simulcast their programming
on their old analogue channel and their new Digital channel. Consumers who have analogue
sets with antennas will be able to watch TV on the existing analogue stations, and DTV set
owners will be able to receive the new digital signals via antenna. When the analogue
broadcasts cease, those consumers with an analogue TV will need to either subscribe to a
delivery service that provides an STB to decode the signals for display on their set,
purchase a Digital Signal Converter, or purchase a new DTV. Consumers will have ample
notice before Canadian broadcasters decide to cease analogue broadcasting.
What kind of Digital Televisions are available now?
The ATSC standards for Standard Definition (SD) and High Definition (HD) relate to
broadcast, not display. The set manufacturers recently adopted specific terminology,
developed by the US based Consumer Electronics Association, to use in the marketing of
their products. In essence, they have separated the capabilities into two categories:
Digital Television sets with built-in ATSC tuners, and DTV Ready
sets requiring external STBs to display the signals. The definitions also cover the
display and audio capabilities of the sets. SD and SD Ready is for basic DTV display, ED
(enhanced definition) and ED Ready is for improved display and audio characteristics,
while HD and HD Ready represent the highest quality resolution available, AC3 audio and
Widescreen aspect ratio. All sets marketed are identified by these criteria.
At this time, most of the sets available
are DTV Ready, and are typically larger screen size models, suitable for Home
Theatre applications. Many companies are also offering Flat Panel models, based on LCD/TFT
or Plasma technologies.
What is involved in Creating HDTV Programming?
The criteria for High Definition Television is that it must be digital content,
transmitted in digital form, received and displayed on an HD capable set. Most 35mm films
and high quality videotape productions can be digitized into a format that qualifies for
HDTV. While many studios are digitizing their libraries for future programming uses, they
are also starting to create programming in digital form, in both Canada and the USA.
When DTV broadcast starts in Canada, how will it work?
Broadcasters transmit their NTSC programming from their central station, with a network of
repeater stations, and will do the same with DTV programming in a simulcast mode. The
broadcasters over-the-air transmitters also feed their programming to
the various cable and satellite service providers, who deliver the programming over their
own networks to their customers. Specialty and Premium programming will also be fed
directly to these service providers, who will make it available to those customers who
have a digital STB and pay additional fees for those programs. A consumer wishing to
receive free DTV programming from over-the-air broadcasts must have a DTV set with a
built-in ATSC digital tuner.
What is involved for a Broadcaster to convert to Digital?
There are 18 different formats of DTV, including 6 High Definition (HDTV) formats. HDTV
requires that the programming be digital, delivered to the DTV or set top box with very
high resolution, (either 720 progressive scanning lines, or 1080 interlaced scanning lines
in a wide screen (16x9) aspect ratio and with Dolby Digital (AC3) audio.
Each broadcast channel is 6
megaHertz, and 1 HDTV broadcast will consume most of that. However there are 12 SDTV or
Standard Definition Television formats utilizing lower resolution than HDTV, either 16x9
or 4x3 aspect ratio, and lower audio quality. These broadcasts can be compressed so that a
broadcaster could transmit at least 4 SD programs in the space of a single HD broadcast.
Broadcasters must select which ATSC format they will use for programming. As all ATSC
STBs and tuners can decode all ATSC formats, it is up to the broadcaster to
determine their preferred format for broadcast.
Are any Canadian Broadcasters Digital Yet?
Toronto-based City TV has already applied for an over-the-air DTV broadcast license, and
other applications for major market stations are expected to follow. There are three test
transmitters now operating in Ottawa, Toronto, and Montreal. These transmitters are being
fed a variety of DTV programming to test the efficiencies and capabilities of the various
ATSC formats. Many Canadians are now able to receive to DTV transmissions from the
increasing number US border city broadcasters. Canadian set manufacturers report that
these markets exceed the national average in sales of HDTV sets with built in tuners. This
is a clear indication that Canadian consumers are ready for HD.
Broadcasters throughout North America are
faced with the elimination of their analogue-broadcasting spectrum, and must re-engineer
their facilities to meet the ATSC broadcast standards. In most cases all the transmission,
studio, camera equipment and repeater tower equipment must be replaced.. However, many
stations upgrade their equipment on an ongoing basis, and have included the cost of
converting to digital in their long-term business plans. Currently, approximately 20% of
Canadians receive their primary television directly from over the air
broadcasts.
What are the Cable Company Doing?
The cable industry currently services roughly 74% of Canadian TV households. The major
cable companies have built out their networks to be able to provide digital services to
most of their subscribers, and are aggressively promoting their digital STBs.
Approximately 800,000 of their customers currently have these STBs. Digital cable
subscriptions are forecasted to exceed 2,000,000 by 2005. Many cable companies are now
distributing several channels of High Definition television programming, although viewers
need to upgrade their SD digital STBs to new HD compliant models to benefit. The
major cable companies are actively sourcing new HD content to add to their services.
What is the Status of DTH Satellite in Canada?
The two authorized Canadian satellite companies have captured over 14% of the Canadian TV
viewing households, and are growing. The satellite companies digitize the analogue
programming they receive to SD, and deliver it to their customers STB in that form.
The STB then either passes the signal directly to a DTV display, or converts it into a
signal that can be seen on an analogue TV set. Both service providers are offering several
channels of High Definition programming, and market HD STBs to decode those signals.
What should Consumers Buy?
There are many different choices available, depending on the needs and wants of each
individual. Most Canadian TV retailers are well versed in the specific features and
capabilities of their products, and can give good advice. Certainly, an in-store
demonstration of the picture quality available in DTV will assist in the decision making
process. The availability of HD programming may vary from area to area, depending on
service providers. More and more DTV content is being made available on an ongoing basis,
through cable and satellite, and will be ultimately be joined by broadcast.
One thing is certain though
DTV is a reality, not a trend or a fad, and is here to
stay.
DTV in Canada 2002, A Work in Progress
The idea of HDTV is being embraced by
consumers in ever increasing numbers. Evidence of this is the sales ratio of HDTV capable
products in Canadian border cities with access to US over-the-air HD broadcasts. Since
introduction, Canadian consumers have purchased well over 500,000 DTV capable sets.
The set manufacturers have introduced a wide variety of increasingly affordable DTV
compliant sets, including some based on exciting new technologies, such as LCD and Plasma.
Many brands provide comprehensive technical information on their web sites.
The Canadian DTH satellite companies have already demonstrated their
readiness and capabilities in delivering DTV, although consumers will need to obtain an HD
capable STB and subscribe to the HD programming.
The cable companies are continuing to build out their networks to reach as many
customers as they can. Subscribers with HD STBs will be able to receive a number of
HD channels.
There are 3 over-the-air test transmitters up and running, providing valuable information
and experience to the broadcasting community, as they prepare their transition to free
over-the-air digital broadcasts. |