Dan Walker and guests look ahead to the weekend's fixtures and look back at recent happenings in the world of football. The Premier League's 'big four' are all in action, with the early evening kick-off between Manchester United and Arsenal the pick of the day's games. In the Championship, Nigel Clough takes his Derby County side to Nottingham Forest, the club with which he started his playing career, and which his father Brian twice guided to European Cup success. In the SPL, Rangers host Hamilton, while Celtic visit Hibernian on Sunday.