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UK National Rail live train departure boards.
Displays the departure board for the specified station.
The codes are often guessable, but sometimes you may need to go to the
National Rail (http://www.nationalrail.co.uk) site to look it up 
first.
Examples:
natrail BHM - Brimingham New Street
natrail CRE - Crewe
natrail BRI - Bristol Temple Meads