RTÉ.ie's extensive coverage of this year's RBS 6 Nations Championships comes to a climax this weekend as Ireland attempt to close in on a first Grand Slam since 1948.

This Saturday promises to be a memorable day, and RTÉ.ie users on the Island of Ireland can keep up with the action from 12.45pm, with live coverage of Italy v France in Rome first up. Commentary by Hugh Cahill and Tony Clement.

Next up is the Calcutta Cup clash between England and Scotland live from Twickenham at 3.30pm. Commentary by George Hamilton and Ralph Keyes.

Then at 5.30pm it's the big one, as Ireland face Wales at Cardiff's Millennium Stadium with the destination of this year's Six Nations up for grabs. Commentary by Ryle Nugent and Tony Ward.

Online users worldwide can access RTÉ Radio 1's coverage of Wales v Ireland with commentary from Michael Corcoran and Donal Lenihan.

Users can also read a live text commentary on Wales v Ireland by Ed Leahy here on RTÉ.ie from 4.45pm on Saturday. Click here for live text commentary.

There will also be regular live updates from the other two games on RTÉ Radio 1.

All games will be streamed live via the RTÉ.ie Rugby Media Player.

RTÉ Radio's coverage of all Ireland matches are available worldwide via RTÉ.ie.