Xfinity Mobile will now charge subscribers if they want to stream HD video with an unlimited data plan. The Comcast-owned wireless service announced that it would add this fee over a year ago when it first began capping video resolution on unlimited plans to 480p. But until yesterday, customers could call and ask to have that limitation waived at no cost.

There are two other caveats to Xfinity Mobile’s unlimited data plan: speeds are throttled after 20GB each month, and hot spots are permanently limited to 600 Kbps. Those restrictions have already been in place, and there’s no way to lift either of them.

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