Just a few quick points - firstly, if there is not already a Sky dish at the property you'll be renting, you'll need to make sure you get the written permission of the landlord to have one installed. Have a word with the agent if you're not directly in touch with the landlord and they can sort it out for you
Secondly, it depends what games your boys want to watch as to whether they'll be shown on Sky TV here - things like the FA cup rounds, premiership games and major competitions are
sometimes shown, but anything else isn't usually available. I think they sometimes show the games on a channel called ESPN (a free channel available through Sky) but the majority of any matches they do show are on Sky Sports 1,2 or 3. Otherwise, if the matches aren't broadcast, you might be lucky and get a quick mention at the end of the international news!
Who do they support? My son supports Cardiff City and one of the main reasons he wouldn't come to NZ to live (or even to visit!) is that he'll miss all of their matches and, as he openly admits, football is his life and the thought of missing even one game fills him with dread!