Android usage for today (my usage resets on the 1st of each month): TE - one match watched 'live' today, 16.59MB.
I probably use the phone for matches on average about once a day - I have a 500MB data package, but if I exceed this then I burn up the free minutes and my PAYG top-up minutes until it gets to £0.00 or I top-up again. I've also set a 2GB monthly alert in the settings - I have never been alerted in the time I've been using TE with live match versions.