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 correct

Hope this helps.

Thanks,

Ken