Digital TV Technical Discussion

Is 7two actually in Full HD or are they just testing the name out?

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Looks full HD to me

Yea it is.

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W regional VIC and NSW (and GC)

In the UK Channel 4 will be closing its SD channels on satellite next month. That follows ITV1 and 2 SD channels closing earlier this month.

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Great news! Seven is really pushing forward with removing MPEG-2. Glad they didn’t bother with simulcasting 7two and 7twoHD for a period like in Regional Qld. There’s no point now.

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At this point, the government should send free STBs to all households. No need for networks to say (You’re TV may not work with this channel lul)

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No

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Are you willing to pay higher taxes to fund them?

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The amount of people in this scenario would be so incredibly small. What a waste of money to hand them out.
If anything, work with the big retailers to offer a subsidised STB for people who go to a store.

Even then, they’re $50…

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The government should set up a website. Quote your Centrelink benefit number, address, details get validated to confirm income support status, STB gets sent out, max 2 per household.

Even then, I doubt many people would claim.

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didn’t the government have some sort of subsidise scheme for STBs when digital TV first came out. It was necessary then as we had to get everybody onto digital by 2008 (later 2010-2013). Now I am not so sure.

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It’s going to be the same outcome… once MPEG2 stops being used altogether, they will have no signal, just like they would have had no signal when analogue TV was switched off, unless they upgrade/changeover in both cases. I know MPEG2 isn’t being switched off officially as such, or with a shutdown date, but surely will be obsolete soon.

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how many non-MPEG4 sets are out there? Any tuner up to about 15 years old shouldn’t have an issue. Any tuner older than that is probably coming to the end of life anyway?

There also hasn’t been (AFAIK?) any widespread impact on viewers by existing broadcasters migrating to MPEG4?

I am just not sure there is any need for any subsidising of TV tuners now.

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I’m back from a short trip I had, and obviously that meant grabbing some bitrate analysis in a few different markets, as everyone does for fun…

Anyway closest to home for me to start with, Ballarat. I didn’t bother sampling the ABC/SBS setup…

WIN

WIN Television Video Format Audio
8 Ch9 Ballarat 2.3Mbps MPEG-2 SD 128k MP2
81 9Gem 4.15Mbps H.264 HD 384k AC3
82 9Go! 4.82Mbps H.264 HD 384k AC3
85 GOLD 0.98Mbps H.264 SD 128k MP2
84 New Channel Coming Soon 0.48Mbps H.264 SD 128k MP2
83 9Life 1.32Mbps H.264 SD 128k MP2
80 9HD Ballarat 5.5Mbps H.264 HD 384k AC3
Nulls 1.08Mbps

So WIN is kinda the least interesting, the ā€œNew Channel Coming Soonā€ isn’t, and their ā€œCh9ā€ branding over just ā€œ9 Ballaratā€ bothers me, but those are some pretty good bitrates compared to what Nine Metro dishes out.

I really don’t know why they don’t put the time into a proper program guide for GOLD - I ended up watching half of an Alive and Cooking episode on there - which included one ā€œad breakā€ for a Crawfords DVD collection. Other than randomly stumbling on it, you’d have no reason to try and watch it - despite it not being wall to wall advertorials like Nine’s Extra.


Seven

Seven Network Video Format Audio
6/60 7HD Ballarat 2.78Mbps H.264 HD 256k AC3
62 7twoHD Ballarat 3.00Mbps H.264 HD 256k AC3
64 7mateHD Ballarat 4.11Mbps H.264 HD 256k AC3
65 7Bravo 4.16Mbps H.264 HD 256k AC3
66 7flix 1.05Mbps H.264 SD 128k AAC
67 TVSN 1.42Mbps H.264 SD 128k AAC
68 RACING.COM 1.33Mbps H.264 SD 128k AAC
Nulls 3.28Mbps

Seven just seems like they stopped including the SD version of Seven in the multiplex, but haven’t otherwise corrected for it, so there’s excessive nulls. It would shock me if that’s something required as a stat-mux safety barrier, so probably could be allocating that.


Southern Cross Ten

SCA Video Format Audio
5/51 10 Ballarat 2.42Mbps MPEG-2 SD 256k MP2
50 10 HD Ballarat 4.11Mbps H.264 HD 384k AC3 (5.1)
52 10 Peach Comedy 2.47Mbps MPEG-2 SD 256k MP2
53 10 BOLD Drama 2.8Mbps MPEG-2 SD 256k MP2
54 Nickelodeon 1.70Mbps H.264 SD 256k MP2
55 SBN 1.63Mbps H.264 SD (640x576) 192k MP2
56 Sky News Regional 1.75Mbps H.264 SD 192k MP2
57 gecko 1.15Mbps H.264 SD 128k MP2
58 you.tv 1.40Mbps H.264 SD 64k AAC
Nulls 0.46Mbps

So a few interesting things there - I didn’t realise it myself but I cross checked Ten Melbourne, and it indeed also has surround sound enabled on their HD channel. I don’t know if any programming airs with native surround sound.

SBN has an odd horizontal resolution - but that has otherwise vanished as a thing broadcasters use to squeeze bits - otherwise all channels are 1920x1080i for HD services, or 720x576 for SD services.

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Great work!

Interesting that 7’s main channel has a lower bitrate than Two and Mate. Was there sport on at the time?

I wonder if the ā€œCh9ā€'thing was ordered by Nine themselves to differentiate from their own LCN naming conventions?

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There have been social media posts locally about people losing access to Seven, but it’s hard to tell if it’s because their TV/STB can’t do MPEG4 or because it’s not picking up changes in the stream properly (which was a common issue)

Telling viewers they might need to buy a new TV off the bat hasn’t helped the situation.

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Great to see WIN in Ballarat isn’t wasting bits by simulcasting Go! and Gem in MPEG2 SD like they do in metro areas

This has been the case for as long as I can remember. The 5.1 indicator would always light up on the amp for 10HD.

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Yeah, when digital first started it was commonplace, but nearly every other network has dropped it over time - I think with the launch of the MPEG-4 HD channels. Ten’s seemingly the only network that kept it in that process - and in Ten metro both 10HD and 10 Bold Drama have it.

It’s like they just forgot to stop…

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