[opendtv] Re: Tivo Triggers
- From: "Lee Wood" <LWood@xxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Mon, 28 Jun 2004 09:10:02 -0700
To add some fuel to the discussion..
The TiVo triggers are buried within the normal Closed Caption (CC1)
stream as 'pages' coded NOT to display on the screen. This means you
can't just delete CC2 (or some other EIA-608 service) to kill the
triggers. The TiVo units look for the 'do not display' instruction then
the 'code' of the 'spot' to insert over the broadcast program stream.
I have also had one report that some of these substitution spot are
longer than the spot that triggered the substitution to be covered. For
example a two minute spot is covering the entire commercial pod, not
just the spot that triggered the substitution to start.
Apparently one cable network group has purchased caption 'grooming'
equipment to filter out the TiVo triggers on their networks.
> -----Original Message-----
> From: John Willkie [mailto:johnwillkie@xxxxxxxxxx]=20
> Sent: Sunday, June 27, 2004 12:21 PM
> To: opendtv@xxxxxxxxxxxxx
> Subject: [opendtv] Tivo Triggers
>=20
>=20
> I've been sitting on this tidbit for sometime, and I thought=20
> I'd release it now.
>=20
> My point all along has been that Tivo ('s original=20
> implementation) is obvious technology, technology that, if=20
> widely accepted, will destroy the U.S. system of broadcasting.
>=20
> In a talk with a high-ranking engineer at one of the U.S.=20
> broadcast networks a month or more ago, I was told that the=20
> latest thing he was working on was "Tivo Triggers." While=20
> the networks are less than happy about the implications of=20
> Tivo, advertisers seem to have no such reticence.
>=20
> This particular network (perhaps others) have noted that=20
> advertisers are now transmitting advertising scheduling and=20
> replacement information to Tivo units, using commercial=20
> availabilities (at least on that network.)
>=20
> How are they doing it? EIA-608 data.
>=20
> This brings up several pertinent questions.
>=20
> Are these triggers included in what the advertiser gets from=20
> the network? This largely depends on the actual advertising=20
> contract. Most contracts limit the ad to audio, video and=20
> associated captioning information for the 885 or so frames in=20
> a "30 second" spot. At the network that employs the=20
> engineer, they are of a mind that Tivo triggers are not=20
> covered by their advertising contracts.
>=20
> Indeed, it sounds like a revenue source to me. However, it is=20
> probably something that advertisers are not willing to pay=20
> extra for. So, they'll lose the ability to transmit EIA-608=20
> data outside of captions.
>=20
> John Willkie
>=20
> =20
> =20
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