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Bschneider
10-02-2008, 11:06 AM
Bright House Uses Switched Digital to Expand HD Content

BigBand Provides Infrastructure for Rollout

George Winslow -- Multichannel News, 10/1/2008 9:15:00 AM

Cable operator Bright House Networks has completed the switched-digital rollout in its Orlando, Fla., system and is now installing it in Tampa, Fla., and Indianapolis, with BigBand Networks providing the products and services for the upgrade.

By using the bandwidth-saving technique, Bright House will be able to significantly increase its HD lineup and better compete against the telco video offerings available in various parts of its Florida footprint.

“There is a rush by cable operators to get more HD content as satellite and other providers are touting their large HD offerings,” said BigBand chief cable architect Doug Jones. “It is a very reliable and cost-effective way of adding programming and among operators HD programming is becoming the driver [for moving to switched digital].”

Cable operators have traditionally broadcast all available channels simultaneously to the home via their hybrid fiber-coaxial networks. Adding the bandwidth to launch additional channels requires an expensive plant upgrade.

With switched digital, an operator needs only to send out a channel when a specific group of viewers requests it, clearing up bandwidth to add more programming.

Time Warner Cable has been particularly aggressive in deploying BigBand’s switched digital products and in recent years, other operators have followed suit. Five of the six largest operators have deployed BigBand’s switched digital service to about 16 million homes, said Jones.

“We’ve announced working with everyone but Comcast,” he says.

Comcast is also aggressively deploying switched digital as part its efforts to expand HD programming, using Motorola technology.

BigBand has been working with Bright House on the switched-digital deployment since the beginning of the year, Jones says.

“They realized one of their goals was HD expansion,” Jones explains. “Bright House has a good partnership with Time Warner Cable. Time Warner Cable is one of our good customers.

“They were one of the pioneers in switched digital and their success with switched very clearly showed the benefits of switching and specifically how it allows you to add more HD programming.”

Currently the Bright House Central Florida division, which serves Orlando, offers 26 high-definition channels for free to digital customers. Additional channels are available in a six-channel “HD Pack,” which sells for $6 a month. Premium HD feeds are available to HBO and Showtime subscribers.

Bright House also offers about 100 hours of on-demand movies in HD, and has announced plans to add additional HD channels and on demand content by the end of this year.

The fact that HD channels sop up a lot of bandwidth makes plain the benefits of switched networks, Jones said.

“With standard-def channels you can generally get 10 per QAM but only two or three HD channels per QAM,” he noted.

Bright House used BigBand because of its experience in deploying its switched digital products — now in their fifth generation — as well as its ability to roll them out in less than 90 days, according to Jones.

“We’ve broken the dependency of linear programming [the network’s bandwidth]” he said. “Once operators get comfortable with having broken that dependency, then it’s off to the races. They can just find more ways to add digital QAMs and add more programming.”

At next year’s Cable Show in Washington, D.C., BigBand engineers will deliver papers showing how an enormous amount of programming can be packed onto a 750-Megahertz plant, said Jones.

“With 750Mhz, you can do 400 HD channels, 400 standard-def and have a 100 Mbps DOCSIS 3.0 product,” he said.

http://www.multichannel.com/article/...rce=title&rid= (http://www.multichannel.com/article/CA6600951.html?nid=2387&source=title&rid=)

CactusJack
10-02-2008, 12:07 PM
"With switched digital, an operator needs only to send out a channel when a specific group of viewers requests it" Oh, no, I'll only be able to watch a given channel when the everyone in a "specific group" has requested it? <g>

Has anyone here had real-world experience with this SD? (Why'd they have to use a name that abbreviates like "standard definition"...) How is the response when surfing the channels? That is, how long does it take for a picture to load? How's the HD quality? Anyone know when it will actually be up and running for the mid-Pinellas market?

Jack

bdraw
10-02-2008, 01:37 PM
When I played with the TiVo HD that had the tunning adapter on it at the Cable Show last year, I couldn't tell the difference between SDV and regular channels.

But then again, no DVR is famous for channel changing speed.

CANDY76MAN
10-02-2008, 04:35 PM
I know the satelite based services have bandwidth shortage issues but i was under the impression that wired and fiber networks had plenty of headroom? I mean BHN is fiber up to the nodes for each neighborhood right?

rossinfl
10-02-2008, 04:52 PM
now if bhn would only announce for tampa area what hd chnls will be added before the end of 08 and when will they be added we will be happier about this.

ismeelgato
10-04-2008, 06:52 PM
What this means, is that the channel does not have to be always on and using bandwidth while no one is viewing it. Instead, the bandwidth that this channel used to occupy on all region is now free to be used for whatever other channels the viewers really want to watch. If you tune to a channel with Switch Digital, this channel will then be requested by the cable box and the stream will begin to this specific cable box only instead of the entire county you are on.
The whole setup process for the box to obtain the new video stream that you tune into only takes a fraction of a second. You will not notice the difference on speed while surfing channels. If anything, is actually faster.

Also, its not abbreviated SD, its SDV.

With SDV, BHN will be able to offer so many more channels that you won't be able to browse through them all in one sitting. This includes many many more HD channels. Their network is already very big as it is, now that they will have all this extra bandwidth to spare, its just going to get bigger.

pilotbob
10-07-2008, 09:30 AM
With SDV, BHN will be able to offer so many more channels that you won't be able to browse through them all in one sitting. This includes many many more HD channels. Their network is already very big as it is, now that they will have all this extra bandwidth to spare, its just going to get bigger.

I never understood... what happens if everyone wants to watch a different channel. Won't they have the same bandwidth problem? You only need 1 person to watch a channel to be using that bandwidth right?

BOb

bdraw
10-07-2008, 11:31 AM
Theoretically it could happen, and I've heard that they'll put up a channel unavailable message in the event they run out of spots. But in that even they'll just move more channels to SDV which will decrease the likelyhood of it happening again.

Jason
10-07-2008, 07:16 PM
Theoretically it could happen, and I've heard that they'll put up a channel unavailable message in the event they run out of spots. But in that even they'll just move more channels to SDV which will decrease the likelyhood of it happening again.

Hmmm...unless they have the capacity to meet the demands of all viewers in a particular area, this is a potential disaster waiting to happen.

I can hear the arguments now: "I pay to watch this channel any time I want, and now you're too busy to deliver it to me? How long before I get to see it?"

Bschneider
10-07-2008, 07:59 PM
I highly doubt that any of that would happen.

Last week, I was talking to Greg from Bright House, remember him? Anyway, we were talking SDV and he told me that they know exactly which channels are the least popular on their network. Those are the channels that are going to be on SDV.

bdraw
10-07-2008, 09:22 PM
Right, the software to manage this stuff is very comprehensive and the fact is that the viewing habits of users is very predictable. The system is also flexible enough that they can move an unwatched channel to SDV to free up bandwidth when needed.

ismeelgato
10-15-2008, 10:17 PM
I never understood... what happens if everyone wants to watch a different channel. Won't they have the same bandwidth problem? You only need 1 person to watch a channel to be using that bandwidth right?

BOb


As mentioned on the other posts. SDV is a very advanced and carefully review technology. The channels that will be implemented into this new technology have been chosen after carefully reviewing their usage stats. Therefore, the channels that are viewed by most people everyday, which believe me is very small depending on location, will not be placed on SDV. In addition, we are talking about a network that can support in eccess of 80gigs of bandwidth. This means that, even if there is an instance where all the channels are being view at the same time (which i doubt has ever happend), there will be enough capacity to deploy those channels. No company in the right mind will set itself up for failure with such a technology before revising and testing it thoroughly.

pilotbob
10-16-2008, 10:51 AM
The channels that will be implemented into this new technology have been chosen after carefully reviewing their usage stats. Therefore, the channels that are viewed by most people everyday, which believe me is very small depending on location, will not be placed on SDV.

Thanks. Also, from reading here somewhere it explained that the switching was done at the node level and that the fiber feed to the node has enough bandwidth to carry all the channels. I didn't realize that. So, if a node only has 400 houses I can see where there wouldn't be a problem. It makes more sense now.

BOb

Jason
10-16-2008, 05:29 PM
Will BHN move the same channels to SDV in all areas, or will they (can they) make changes based on neighborhood/town/region?

As an example, let's say that the customers on one side of a city watch a lot of sports and family programming, but little news or entertainment programming, but the other side of the city is 180 degrees opposite. If such a situation really existed, can the system be tailored to such demand? And would there be any benefit to it?

Thanks to posters before me for making SDV more understandable.

SomeRandomIdiot
10-17-2008, 04:13 AM
No company in the right mind will set itself up for failure with such a technology before revising and testing it thoroughly.

One only need read the New York - Cablevision Local Thread on AVS to see that is not the case.

Between the "channel not available" display, slow switching and no program at all (and much worse macroblocking on the HD channels than before), that statement sounds good in theory - just not in practice.