Double Pillarbox on Old Content on PC Streaming

(simulated screenshot)



As mentioned on this post here: https://forums.xfinity.com/conversations/xfinity-stream-app/double-pillarbox-on-old-content-on-pc-streaming/643ca370cf8f0e236bcf2622?commentId=64f710fabaecdd4ece04f8a0

When streaming from https://www.xfinity.com/stream Many channels display shows the incorrect aspect ratio. 


This problem happens on both the Standard and HD versions of channels.
No solution from the previous thread have provided it an answer.
It is not a Computer problem or a display problem, Its an internal problem with the streaming platform itself and how video feeds are streaming to the website.

It happens on Comet TV, Retro TV, Me TV, Antenna TV at least. As mentioned its a problem with both standard and HD channel versions,