Seems there's a price variant across all platforms when it comes to SKY Box Office events.
Both SKY and Virgin Media are charging £19.95 for Mayweather v Pacquiao this Saturday, which is the highest price they've charged for a boxing PPV event. TalkTalk however are only charging £14.95!
http://blog.talktalk.co.uk/newsroom/...n-talktalk-tv/