As the topic says...I am buying a tablet to take on the Eurostar and as I have booked Disney World for next year, I get a years free subscription to Disney Life so what better time to watch some Disney movies whilst on my way to Disneyland?!
http://newtrains.eurostar.com/stay-connected
Only on the new trains, which at the moment don't serve DLP as far as I'm aware. My experience of most train wifi on other operators is that it's
a) generally a bit rubbish
b) they don't want you streaming stuff as is uses up too much bandwidth.
Given that due to the EU directive we no longer pay extra for calls & data abroad, then just use your phone's data!
We had one of the new trains going direct to Disney but the wifi isn't really good enough to stream. However you can download with the DisneyLife app so you can watch things without needing the net.
I had Wifi on my train when I went in June, but to be honest it was pretty rubbish. Couldn't get any sites other than the Eurostar entertainment site to work (which was fine, I just binge watched The Young Pope on it!).