Quote Karl_="Karl_"How come? i didnt know you could do that, i prefer night games, better atmosphere IMO.'"
It is up to clubs which day they play there home games on, but they know that if the game is selected as a SKY game then it could be moved to a different day than normal.
Saints, Wigan, Leeds and Hull all play the majority of home games on a Friday. The bonus is that it means if the game is selected for SKY there is less chance of it being moved (unless they want it on the Saturday of course)