COMING UP: Don't miss Xfinity Monday Live, with special guest Broncos receiver/punt returner Jordan Taylor. Watch it on CBS4 at 6:30 p.m. or head to ViewHouse Centennial to see it live!
4G In Denver Among The BestAsk anyone how their cellphone works and you'll probably get an earful. Cell companies are constantly working on improving networks, but there are still gaps. And now they're touting new 4G service. So CBS4's Alan Gionet wondered, what is 4G?

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