[opendtv] Re: Execs see challenges bringing Net video to TV
- From: "John Willkie" <johnwillkie@xxxxxxxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Thu, 25 Sep 2008 23:26:29 -0700
So, everybody in the neighborhood will be watching the same five channels at
the same time?
Let me see, 5-8-VSB transport streams at the same time is "only" 95 mb/sec.
Of course, you wouldn't need the entire transport stream. But, capturing
four basketball games at the same time (final 8) would "only" be 76 mb/sec.
John Willkie
-----Mensaje original-----
De: opendtv-bounce@xxxxxxxxxxxxx [mailto:opendtv-bounce@xxxxxxxxxxxxx] En
nombre de Tom Barry
Enviado el: Thursday, September 25, 2008 8:27 PM
Para: opendtv@xxxxxxxxxxxxx
Asunto: [opendtv] Re: Execs see challenges bringing Net video to TV
Then I guess I'd need somewhat better than a 40 mbps line. These won't
be unusual. The point is that if everybody in my neighborhood had that
speed we could ALL do all of them at the same time and it wouldn't take
petabits/picosecond, just broadband.
Of course I'm expecting if that sort of multicasting is available at all
it will only be available thru ISP's (cable&phone cos) as some sort of
premium service where either the broadcaster or user has somehow
prearranged it. Only very popular sources like the network may have
the economy of scale to cost justify it. The folks that do will still
be some sort of 'broadcasters'. I'd even imagine something will be
arranged for national multicast with provisions for local content and ad
insertion.
Of course that makes it sort of like cable is already doing or moving
toward with IPTV. And if you made those stations available on free wifi
nodes for ad supported TV (at the broadcasters request) you could call
it the new lifeline basic mobile tier.
- Tom
John Willkie wrote:
> So, if you wanted to watch 1 stream and record 4 at the same time (like
you
> can do with AT&T u-verse ...?
>
> John Willkie
>
> -----Mensaje original-----
> De: opendtv-bounce@xxxxxxxxxxxxx [mailto:opendtv-bounce@xxxxxxxxxxxxx] En
> nombre de Tom Barry
> Enviado el: Thursday, September 25, 2008 7:33 PM
> Para: opendtv@xxxxxxxxxxxxx
> Asunto: [opendtv] Re: Execs see challenges bringing Net video to TV
>
> OTOH, if it was real time and everybody watched it the same time in 8
> mbps AVC then they would only have to make multicasting work. Five major
> networks could be pushed for a total of only 40 mbps to the whole
> neighborhood.
>
> Other stations would still have to be pull and limited distribution.
>
> Of course nobody really seems to want to make multicasting work.
>
> - Tom
>
> John Shutt wrote:
>> Hmm, let's see. An HD program gobbles up, let's say 16 Mbps. 100
>> viewers want to watch the same program, but the start times are
>> staggered by just a few minutes, so that each viewer gets his/her own
>> unicast stream. That's roughly 1.6 Gigabits of traffic to serve 100
>> viewers. I don't think that even the Verizon FIOS backbone would
>> survive that.
>>
>> Nope. TiVo, or this article's NetFlix cache box is still safe. The
>> only way that Verizon FIOS works is with multicasting, which is the IP
>> equivalent of OTA broadcasting.
>>
>> John
>>
>> ----- Original Message ----- From: "Manfredi, Albert E"
>> <albert.e.manfredi@xxxxxxxxxx>
>>
>>> If the networks make all of their shows available online, say 30 minutes
>>> after the show was aired, and if the ISPs' core nets can handle the
>>> demand without too many glitches, pretty soon it makes one wonder why
>>> the networks need to depend on broadcasters and MVPDs. All they need is
>>> ISPs.
>>
>>
>>
>>
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