[opendtv] Re: 4:3 transmissions of syndicated programming
- From: "Manfredi, Albert E" <albert.e.manfredi@xxxxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Tue, 4 Mar 2008 14:59:15 -0500
John Shutt wrote:
> All of the SD channels are in 4:3 SD 480i, and lots of it is
> letterboxed. Bert's original question was why not go with 16:9
> anamorphic 480i on the SD channels instead of letterboxing 16:9
> within a 4:3 frame.
Thank you. Transmitted as 704X480i. That's the question, yes.
> We never, never, NEVER change the format of a subchannel. Too
> many boxes break or go stupid when we try. Originally we were
> going to tricklestream some subchannels during primetime, but
> we found that even that breaks enough early televisions that it
> isn't worth aggravating our viewers.
Okay. It makes sense to play it safe, at least until all the first gen
sets are retired.
> We have found that using 720p as an emission format, and the
> latest in multipass stat muxing, we can get away with full time
> operation with one HD and three SDs. We give low priority to the
> last two SD channels, and highest to the HD and one SD.
Just like WETA-DT.
Bert
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