kmason5727's profile

Frequent Visitor

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8 Messages

Wed, Jun 17, 2020 1:00 PM

Incorrect Aspect Ratio on many channels

Hello, 

I have notice many channels are not displaying the correct aspect ratio.

I am in the Miami, FL market and watching on an X1 box.  I understand not all channels are HD, but when tuning to, for example, 1810, the movie is squeezed horizontally with two black bars above and below it. My 16x9 screen should be filled with the whole screen. So, in essence the movie looks stretched. Now, when I view it on the website, it looks perfect.

It seems to be a setting in Comcast because some channels look good, while others do not. 

If someone wants to contact me, I'll be more than happy to go through to help fix the channels that need to be adjusted.

 

In the picture.... Left side is X1 Box. Right side is XFinity Stream.

Notice how Tom Hanks is stretched on the left side. Settings on the TV are correct20200617_155028.jpg

Hope this helps.

Thanks,

Ken

Responses

Contributor

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451 Messages

1 y ago

Sometimes movies are shot with such an extremely wide screen aspect ratio that there are STILL the top/bottom bars, even on widescreen tv's

kmason5727

Frequent Visitor

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8 Messages

1 y ago

>>Sometimes movies are shot with such an extremely wide screen aspect ratio that there are STILL the top/bottom bars, even on widescreen tv's

 

Yes. I understand the cinematic aspect ratio. If you were able to see the pic, you would see what I mean.

I made the pic smaller... hopefully you can see it.

20200617_155028.jpg

Sample 

Thanks, ken

MNtundraRET

Expert

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4.6K Messages

1 y ago

The best thing to do is use your TV remote and test each version of Aspect ratios available: Auto, Normal, Wide (somtimes more than one), Cinema. Alot depends on the signal the provider uploaded to Comcast system: 420p, 720p, or 1080i.

 

Movies produced for wide-screen, Omni, etc., theators will end up with black horizontal borders. The vast majority of 3D, or 4K, movies end up that way on my Samsung curved 3D UHD television. I can change aspect to fill screen, but that means loosing part of the picture on left or right seen at the theators. It is really best to watch movies (streaming) over high-speed broadband. The copy supplied is usually 1080p (Blue Ray quality).

kmason5727

Frequent Visitor

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8 Messages

1 y ago

So, you are asking me as an end-user to adjust my tv set for every channel that is displayed incorrectly.
I shouldn't, as an end user, have to adjust my settings for different channels.
All the HD channels are correct. When I tune to an SD channel (In this case, an HD channel that has been downconveted to SD), the downconversion is not set to the correct aspect ratio.
I understand what cinematic ratio is. I understand that some movies are displayed on a 16x9 tv set that are "letterbox" and will show black bars above and below.
But, that is not the problem. The visual shows that you are taking 16x9 footage and squeezing the top and bottom. This is a setting at Comcast.
Hope this makes sense.
I will try to provide more examples.
Ken
MNtundraRET

Expert

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4.6K Messages

1 y ago

I am sorry to report that I can confirm what you are seeing. I cycled through all lower channels (1 to 200). Except for very few exceptions (about 5 channels), all SD channels appear like you showed. Some with smaller picture with 4 borders (black).

 

I also found a bigger problem: ON DEMAND (channel 1) no longer works and shows error CL14. It started a week ago with ON DEMAND. I never watch lower channels so reason I did not notice it. I did find out I could "full screen" those channels by using the "ZOOM" setting on my tv, but you loose part of original picture doing that.

 

It seems Comcast has done some update to their computer system for sending out the Video/Audio to our boxes. It happened here about a week ago. I am in the Bloomington MN service area.

 

This is a localized transmission problem. Not our problem. I will "Escalate" this post and hope they can fix the issue.

Official Employee

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2.9K Messages

1 y ago

Hello, kmanson5727. 

I appreciate you reaching out to us here with your concerns about the SD aspect ratio experience you are having. 

 

I totally agree with you, the incorrect aspect ratio is pretty awful! We have this awesome guide here that gives you some more information about what it is, why it happens, and some tips, tricks, and guides to adjust it so you can experience the best channel view possible. https://comca.st/3i8w6Hc

 

For the most part, newer TV's can detect the quality of the video and automatically adjust it but this isn't always the case, so you will need to do it manually.

 

Please give that guide a try and let me know if you are able to find the right setting for that TV and channel. 🙂

New Poster

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1 Message

1 y ago

What do we do if we are using a computer? Will have to cancel my service soon if these errors can't be fixed. It's unwatchable for sports events.

ForrestS

Gold Problem Solver

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607 Messages

1 y ago

It’s not the signal, but the cable box that is the problem here, yes?

Several months ago we upgraded to an HD-capable cable box and plan. Consider the following:
1 - we have two outputs to the TV from the box: HDMI cable; coax cable (with DVD player between)
2 - we tune the box to an HD channel number
3 - when ‘TV input’ is set to HDMI, aspect ratio is proper
4 - when ‘TV input’ is set to coax, the aspect ratio is distorted a la the earlier poster’s pictures.

So doesn’t this mean the box is distorting the HD channel aspect ratio per whatever downsampling it does for the SD coax output?

If correct, I wasn’t able to change things for the better. Granted, the workaround is to always tune to HD channel where available.

New Poster

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2 Messages

1 y ago

With all due respect, this has taken Comcast far too long. Tivo has this resolved many many years ago with even their early generation of HD boxes. It just detects SD programs automatically and send correct 16x9 resolution to the TV. None of these questions are to do with how to fiddle with the users TV, but how inadequate the X1 box is on this very basic configuration. For the money Comcast charges, one expects better than such smoke screen responses. 

kmason5727

Frequent Visitor

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8 Messages

1 y ago

Hello,

The guide does not correct the problem.

I am using an HDTV through HDMI.

The problem is with Comcast, not my TV. I shouldn't have to adjust my tv settings everytime I go to a downconverted channel.

As someone has pointed out in the thread, you have a video setting called Zoom in the Video settings section. You have two options Zoom: None and Zoom: Full

None will show a postage stamp view of a downconverted channel.

Zoom will show a STRETCHED out picture horizontally of the downcoverted channel. In essence stretching out a 16x9 signal.

You need to make the ZOOM setting to stretch vertically as well.

To go one step further, the Zoom feture doesn't even work on true SD channels (such as OTA secondary channels like OTA 10.2 or 216 in Miami)

Lastly. Why do we even need this option? Aren't we all living in a 16x9 world now. Why is Comcast still downconverting channels? Especially Premium channels like HBO Family and Comedy. 

Ken

New Poster

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1 Message

1 y ago

We just started noticing this problem as well. We recently got the XG1v4 box because we got a new 4K Samsung TV. About a week ago I noticed that the resolution of the box was set to 720p. When I changed it to the "best available" (16:9, 2160p60 4K UHD) then SD channels are tiny. What's the point of buying the TV size we wanted when half the channels are zoomed in? The "Full" setting isn't an option because it stretches the picture horizontally which looks terrible. This definitely needs to be fixed by comcast. I agree with the previous comment. The box needs a "Zoom" or "Fit to Screen" option. Just leads us one step closer to cord cutting.

Contributor

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19 Messages

1 y ago

I have non-X1 boxes and this problem has been going on for a while. I do plan to update the equipment but seeing that even "newer" equipment doesn't work either, I think I'll wait.

My HD channels look like they're zoomed; the vertical & horizontal edges are both off the screen so only the center of the picture displays.

I've gone through all of the settings on the TV and HD Cable box and nothing actually helps. I can get SD channel settings (which look like the picture in the OP's post) to zoom to full 16:9 but the picture gets so fuzzy it's hard to watch. Nothing I do to the HD channels brings the picture to its proper format.

Like others have mentioned, other sources display perfectly. Some channels and programs occationally do display correctly but it's not so regular that I can say which ones or when.

MNtundraRET

Expert

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4.6K Messages

1 y ago


@my-screen-name wrote:

I have non-X1 boxes and this problem has been going on for a while. I do plan to update the equipment but seeing that even "newer" equipment doesn't work either, I think I'll wait.

My HD channels look like they're zoomed; the vertical & horizontal edges are both off the screen so only the center of the picture displays.

I've gone through all of the settings on the TV and HD Cable box and nothing actually helps. I can get SD channel settings (which look like the picture in the OP's post) to zoom to full 16:9 but the picture gets so fuzzy it's hard to watch. Nothing I do to the HD channels brings the picture to its proper format.

Like others have mentioned, other sources display perfectly. Some channels and programs occationally do display correctly but it's not so regular that I can say which ones or when.


That would be expected. the SD channels are only 420p. To synthesize pixals to fill a 2160p screen, only about 5% pixals are real. The rest are signal averaged off those few real pixals.

Contributor

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19 Messages

1 y ago


@MNtundraRET wrote:


That would be expected. the SD channels are only 420p. To synthesize pixals to fill a 2160p screen, only about 5% pixals are real. The rest are signal averaged off those few real pixals.


I don't expect zoomed to be as clear as non-zoomed but I expect a 16:9 broadcast to fill a 16:9 screen. I'm not using a 4K TV or 4K service. Is 4K being sent out on regular HD channels now?

New Poster

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1 Message

1 y ago

I have the same Aspect problem. X1 boxes. 
Has anyone noticed that while activating rewind or ff, the aspect ratio is correct?

 

This should be top priority...once they get the constant loss of service under control. Wish there were other good options. 

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