Arsenal v Manchester United (Kick-off 7.45pm). Bill O'Herlihy is joined by John Giles, Graeme Souness and Eamon Dunphy to present tonight's semi-final second-leg tie from the Emirates Stadium, where the Gunners boast an unbeaten record in European competition. Arsenal trail 1-0 from the first leg, but will be thankful to still have a chance of progressing after being outplayed at Old Trafford, with United only having a John O'Shea goal to show for their dominance. Commentary by George Hamilton and Ray Houghton. There's also coverage, from 7.30pm, over on UTV, presented by Steve Rider and Andy Townsend, while commentary's provided by by Clive Tyldesley and Jim Beglin. Subsequent programmes on both channels are subject to change.