NHL Center Ice HD Issue - XFinity

I have NHL Center Ice, and the picture on the HD station is not filling up the screen entirely. There are large vertical black bars on both sides of the screen. The picture quality itself seems like high definition, but it's not stretching to fill the screen.

Anyone else experiencing this? It's only an issue on this channel (460 for me, though presumably different for people in other areas).

This question, "NHL Center Ice HD Issue," is about XFinity-Comcast TV channels, programming, and sports.

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