Hi - My name is Tina and I am with Suddenlink. Are you receiving your channels over the air (without a cable box)? If so, that is the way they are broadcast over the air in digital/high definition from the broadcasters and without converting them (with a cable box) there isn't anything that can be done to fix this issue. If you add a cable box to your set, then the box can convert the channels without the dashes. Plase feel free to contact me directly at tina-AT-suddenlink-DOT-com for further assistance. Thank you.
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