Your cell phone in theory will work, but that will depend on satalite coverage. I will warn you that it is quite expensive. Cell providers do have packages you can get, but they too are expensive. As far at tv, they do have tv, and they are american channels, but other than sporting events and other important things, its not live and the selection is very limited to say the least. The internet fees are by the minute, they have different deals on internet packages, but generally, figure about $1 or so a minute.
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There are limited TV stations on on board, as I recall they include an old movies channel, sports, cartoon, news and ship channels which are received via satellite. Not much to choose from but usually not in the room long enough to watch TV anyway. Refer to the following links for details on cell phone & internet.
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