
Content On Demand Service In Trains To Be Launched This Month: Official
The much awaited Content on Demand (CoD) service in trains will be launched this month, a senior official of Railway PSU RailTel said on Thursday.

Over the next couple years media servers will be added to trains for passengers to access. They'll include both free and paid for content.
This is better than nothing, but long term I would think network towers would be a much better option.