Decided to bite the bullet and go for (the minimum) one month's ESPN subscription expecting to pay £9 as I've already got Sky Sports. Instead I got offered 3 months for £4.50. No reason given, and not in the list of ESPN offers on the Sky site, but I just have to remember to cancel on a month's notice; they even gave me the cancellation date (17th April) as well. So quite pleased am I.