Last I saw a hockey game on cable in Colorado it was on Comcast channel 73 or 74. Now that our Avs have gone back to the drawing board there has been little hockey available on the tube. It may be on ESPN 2 or maybe on channel 25 also. Or you may have to find the nearest sports bar though watch-out for a conflict with Nugget's or Rockies games. If you are willing to pay the big money just about anything is available on pay-per-view or as part of a package deal too.
Look here: http://www.nhlnetwork.com/
or some Red Wings fan group is simulcasting their games on the internet too. Look up Red Wings on Google for a link to their broadcast. The NHL Network is on Direct TV Channel 215 if you have their dish. (Just checked-out the above site, and they have a live audio-only feed of the Red Wings game #4 going right now, though the site says that the game is also on NBC today).
Let's pray that the Laker's swiftly dispatch our Nugget's so that they don't conflict with our Rockies games.