Bill <no...@none.invalid> wrote:
>Sun, 5 Feb 2017 18:24:50 +0000 (UTC), "Adam H. Kerman" <
a...@chinet.com> wrote:
>>Bill <no...@none.invalid> wrote:
>>>5 Feb 2017 16:16:15 +0000 (UTC), "Adam H. Kerman" <
a...@chinet.com> wrote:
>>>>VanguardLH <V...@nguard.LH> wrote:
>>>>>Bob on 2017/02/05 wrote:
>>>>>>Suddenly have a batch of channels numbered above 1000 on the X1 box;
>>>>>>they seem to just be duplicates of existing channels - anybody know
>>>>>>what's up?
>>>>>Part of Comcast's Master Channel Line-Up (MCLU) plan which started way
>>>>>back in 2010. They want a national channel line-up and are moving all
>>>>>regions ... eventually ... so the HD channels are 1000, and up.
>>>>As the O.P. pointed out, they're duplicates of existing channels, so
>>>>they are not all HD. In my area, most of them are not.
>>>>On broadcast channels, for instance, the NBC O&O is HD, but the CBS O&O
>>>>is SD, just a center cut of the broadcast channel.
>>>You still have a major network, CBS, broadcasting in SD? That's
>>>incredible. No, really, that's incredible.
>>Did you miss the actual words I wrote?
>No, but I guess you're saying I didn't parse them correctly. Even now,
>I'm still not able to parse your original words as you'd like them to be
>parsed, but no matter. The problem could be at my end.
>>I stated that it's a center cut of the broadcast channel. If one were
>>to receive the channel over the air, it would be HD.
>Ok, that last sentence makes sense. The local broadcast is in HD.
Edison's ratio was 4:3 (1.33:1), used in the silent movie era and chosen for
television. Academy ratio was 1.375:1, typically used by movie studios from
the early 1930s till the early 1950s. The change was due to the way sound
was encoded on film. 4:3 could be shown on NTSC television sets with no
cropping; Academy Ratio with slight cropping.
For no valid reason, televisions are now 16:9, a ratio never used by
Hollywood studios in the wide screen era. This requires cropping of even
common 1.85:1 aspect ratio and certainly 2.35:1. There are a variety of
ways to display 16:9 on 4:3. If letterboxed, blank space is added above
and below so there's no loss of image. Typically, the image is cropped. In
a center cut crop, portions of the original image from the left and right
aren't displayed.
Movies used to be panned & scanned for television, which meant that an
editor making the translation would attempt to follow the action on
screen to retain the most important part of the image. It's a superior
technique to center cut, in which no human being makes a decision.
Nevertheless, P&S is rarely satisfactory.
>>At the head end, Comcast outputs most, if not all, HD signals as
>>SD. Sometimes they letterbox it. In this case, it's center cut.
>I have never, ever, seen that. Why would Comcast (in your area) output
>HD signals as SD? What would be the purpose?
I don't have any idea. All one has to do is make the right connection between
set-top box and tv monitor and the output can be displayable on an NTSC
monitor without being cropped at all.
There's no reason for Comcast not to deploy all the same set-top boxes
to every subscriber. They might as well recall all the SD boxes, but
I guess they never did that.
>>Ok. Wouldn't it be far easier to search for a channel if cable operators
>>used consistent abbreviations? . . .
>Don't they already do that?
Comcast isn't even consistent in how it abbreviates a channel that's
provided by the same source. Every ESPN channel seems to offer
inconsistent abbreviations. They'd have to go for more than four letters,
of course.
I'd like to have the choice of entering letters via the remote, not
just numbers.
>Finding channels by name might actually be more efficient, but I'm just
>not used to doing it that way (yet). As a kid, we got two channels, 5
>and 12, so I learned to tune by number. :) . . .
Golly. You were in a small town.