Process of converting film to HDTV

I was watching Forrest Gump and portions of Star Wars Episode I this
weekend in HD and with Star Wars I noted that the quality wasn't all
that different from the DVD version of the movie, while Forrest Gump
looked noticable different.

So I'm wondering if the source for all movies broadcast in HD (usually
1080i) originate in HD or if they sometimes use a DVD media (720x480)
and upconvert it to 1080i before broadcasting. Does anyone know for
sure?

-Jeremy

"JDeats" wrote in message
om...
I was watching Forrest Gump and portions of Star Wars Episode I this
weekend in HD and with Star Wars I noted that the quality wasn't all
that different from the DVD version of the movie, while Forrest Gump
looked noticable different.

So I'm wondering if the source for all movies broadcast in HD (usually
1080i) originate in HD or if they sometimes use a DVD media (720x480)
and upconvert it to 1080i before broadcasting. Does anyone know for
sure?



Star Wars was on Fox, which does not yet do HD. They were showing it at
480p, about the same as DVD quality. I took a look a couple of times, and it
didn't look so hot. I've got DVD's that look better on my set.

JDeats ) wrote in alt.tv.tech.hdtv:
I was watching Forrest Gump and portions of Star Wars Episode I this
weekend in HD and with Star Wars I noted that the quality wasn't all
that different from the DVD version of the movie, while Forrest Gump
looked noticable different.

Episode I was shown on Fox. Fox transmits 480i over the satellite to the
affiliate stations. Even "Fox Widescreen" is sent this way. Although
the station can de-interlace (to 480p) or upconvert (to 720p or 1080i),
there still is only 480i worth of information in the signal, which is
exactly what is available in a DVD.

"Forrest Gump" was shown on ABC, and used a true HD master and true HD
transmission from source to your TV.

That's the difference.

--
Jeff Rife |
For address harvesters: | http://www.nabs.net/Cartoons/Dilbert...rtTraining.gif
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In article ,
Jeff Rife wrote:

JDeats ) wrote in alt.tv.tech.hdtv:
I was watching Forrest Gump and portions of Star Wars Episode I this
weekend in HD and with Star Wars I noted that the quality wasn't all
that different from the DVD version of the movie, while Forrest Gump
looked noticable different.

Episode I was shown on Fox. Fox transmits 480i over the satellite to the
affiliate stations. Even "Fox Widescreen" is sent this way. Although
the station can de-interlace (to 480p) or upconvert (to 720p or 1080i),
there still is only 480i worth of information in the signal, which is
exactly what is available in a DVD.

"Forrest Gump" was shown on ABC, and used a true HD master and true HD
transmission from source to your TV.

That's the difference.

Hasn't HBO shown Ep. I in HDTV already?

poldy ) wrote in alt.tv.tech.hdtv:
Hasn't HBO shown Ep. I in HDTV already?

Yep...true HD. I don't know what actual master was used for the Fox
broadcast (it could have been the same one...after all, that's what was
used to make the laserdisc and DVD), but it had to be down-converted to
480i at some point (again, just like the LD and DVD).

--
Jeff Rife | "...the flames began at a prophylactic recycling
For address harvesters: | plant, near the edge of the forest..."
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| -- "WarGames"
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