Digital TV Technical Discussion

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TV channel changes in Tasmania to improve picture quality for many viewers

From Thursday, 5 October, Tasmanian viewers will more easily be able to watch their local news, entertainment and drama programming and live and free sport all in high-definition as the local TV networks re-order their channel lineup.

Free TV CEO Bridget Fair said: “As part of our ongoing efforts to meet the needs of our audience, we are making the highest-quality versions of our services easier for Tasmanians to find. From October, viewers will be taken directly to the high-definition, rather than the standard-definition, versions of the services.

“No one should lose access to the TV services. In fact, the only change most people will notice is that their free local TV services now look and sound even better.

“The changes are part of ongoing upgrades to local TV transmissions, which have already seen a range of secondary channels (such as 7mate, 9GEM, 10Bold and SBS WorldWatch) move to the more efficient, MPEG-4 digital technology,” Ms Fair said.

Most viewers will not notice any change, which will affect ABC, SBS, 7 Tas, WIN and 10 Tas main channel. However, a small number of viewers with old TVs might need to go to a different channel number to keep watching their free local TV services. This is because some older sets might not be able to properly display MPEG-4 high-definition channels.

Ms Fair continued: “These upgrades are intended to improve picture quality and choice of TV services, including a wider range of channels offering the high-definition picture quality that more and more viewers expect.

“Viewers whose old TV sets are not ready for MPEG-4 are already missing out on some channels and high-definition pictures, which are all available for free," said Ms Fair.

Ensuring Continued Access

Free-to-air TV provides an essential service to all Australians, so Tasmania’s TV networks are taking steps to help any viewers confused by the changes on 5 October or who need any help to regain access to network TV.

Beginning in September, community service announcements on all affected channels will publicise the change. There’s a website and an online video so viewers can check if they are affected and, if so, what they can do about it.

“From early September through to the end of October we have also set up call centre support with a free-call number, 1800 489 755, to troubleshoot any problems viewers might encounter," said Ms Fair.

Background to these changes

For most viewers, the change in channel number will not have any impact. However, viewers can check now to see if they will be impacted. If viewers can already receive the full range of multi-channel TV services available in Tasmania, such as 7mate, 9Gem, 10Bold and SBS WorldWatch. If your set is able to display any of these today, it’s unlikely you’ll notice any change on 5 October.

If, however, viewers get a black screen for these services, or an error message, they will need to use the two-digit channel numbers to find the primary TV services after 5 October. The new channel numbers are:

Getting the best from free-to-air TV

Viewers who need to use the new channel numbers to continue watching the services in Standard Definition might like to know, that they are missing out on the highest quality pictures and the full range of additional channels.

For those who might already be considering updating their TV, investing in a new TV is the simplest way to access the full range of high-definition programming and multi-channels available in Tasmania.

For those who wish to retain their current TVs, set-top boxes offer a much cheaper solution. These devices, obtainable from electronics stores at an affordable price point, should ensure future access to the full free-to-air TV offering while using an old TV receiver.

For the time being, the Standard Definition versions of all five primary channels will continue to be available to all viewers, as the TV networks have no current plans to convert these services to MPEG-4.

It is hoped the Tasmanian channel changes will furnish valuable information to TV broadcasters about the extent of any continuing reliance on much older TV sets, as the industry looks for ways to improve the free-to-air TV offering in future.

For further information and updates, please visit freetv.com.au.

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I think the biggest confusion out of the Free TV message is it could be construed to read like (2/3/5/6/8) won’t actually have anything on them.

Then again, sorta need to consider the target of the messaging - those that don’t really understand digital TV enough to know that the HD channels even exist, and just hit the single digit number to “watch TV”.

To them, and if they have a new enough TV to have MPEG-4 - nothing changes except they’ll have HD now.

To those who are clued-up enough to use the double digit numbers, the same applies (presuming the x0 numbers will kick around) - the only change being the presumed 3/30 change for SBS One.

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Even though this messaging has been well thought out and relays the necessary information (even if it’s too much), I still think one of the networks should put up an info slide on LCN1 or something to drive the message home.

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On 10?

Well no one will see it then!

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1 is 10 no?

Oh, I think it’s LCN 5 in Tassie.

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Use LCN 4 to avoid further confusion.

No LCN 1 in Tasmania. I think they should run crawlers or pop ups on the SD channel - perhaps after every ad break , like for the analogue switch off.

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There’s no LCN 4 either. No use putting messages on channels that aren’t tuned in. Viewers with outdated equipment won’t get the message.

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Most devices perform automatic rescans and LCN1 or 4 is amongst the single digit LCNs seeing these major changes so still makes sense to me.

All areas should have an LCN 4 Freeview info channel anyway. Would be useful for scenarios like this.

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Agree it would be useful and maybe is something that needs to be invested in for the eventual switchover on the mainland too. But the devices that need to know this info won’t have auto scan and the people who have these TVs won’t know how to do that.

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Agree, local broadcasters should collaborate to develop one that can be on a 24 hour loop that is updated a few times a day with

  • Local Weather
  • Local News headlines (with text and pictures only) no audio
  • Community info
  • Technical info
  • Be in MPEG 4 HD to allow viewers to test their set.

There would be a loop for each submarket as defined by the ACMA for local content requirements

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Unless there was a separate transmitter set up which won’t happen, no broadcaster is going to give up part of their spectrum to broadcast such a channel. A network would have to shut down one of its multichannels to set up this up or reduce the quality of its existing broadcasts to fit this into their allocation.

10 probably has the space for it… would only need 1 Mbps anyway.

But yes, unlikely to happen as there would be very little return on it.

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If it is made to be static text that changes every so often the bitrate could be low as hell, as long as the text is readable that’s all that will matter… Take for example the VAST Channel 800, where it simply displays text via a few slides

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A new transmitter? A temporary static slideshow in MPEG-2 would cost very little in bandwidth. TDT would have plenty to spare.

That can’t be right. Lots of digital equipment have auto scan even the older stuff pre-2008.

I really don’t see an issue with this unless there’s some technical limitation where a network can’t use an LCN that’s outside their own allocation.

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While I appreciate that they exist for financial reasons - no one is going to miss one less shopping channel

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The network accountants?

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I was responding to the suggestion that a MPEG 4 community channel be set up Australia-wide.

Doesn’t make any sense to me, the viewers in Tasmania that need to see any message about MPEG 2 would not see it. And elsewhere no-one will want to give up any spectrum, no matter how small.

I suggested that the MPEG 2 channels that remain have a crawler on them before switching off; which is far more likely to be seen.

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