There are eight championship clashes for GAA fans to watch live over the weekend.
With the group stages of the All-Ireland senior football championship set to commence, GAAGO viewers can watch two heavyweight encounters between Kerry and Mayo (3pm) and Galway and Tyrone (5.15pm) on Saturday as well as the Leinster SHC fourth round meeting between Kilkenny and Dublin (6pm).
On Sunday, the focus switched to the Munster senior hurling championship with RTE showing the mouth-watering fourth round clashes of Clare and Cork (2pm) and holders Limerick and Tipperary (4pm).
Check out the schedule of games that you can watch live this weekend:
Saturday, May 20th
All-Ireland MHC semi-finals
Clare v Kilkenny, FBD Semple Stadium, 1pm - TG4
Cork v Galway, FBD Semple Stadium, 3pm - TG4
All-Ireland SFC round 1
Kerry v Mayo, Fitzgerald Stadium, 3pm - GAAGO
Galway v Tyrone, Pearse Stadium, 5.15pm - GAAGO
Leinster SHC round 4
Kilkenny v Dublin, UPMC Nowlan Park, 6pm - GAAGO
Tailteann Cup round 2
Leitrim v Fermanagh, Avant Money Páirc Sean MacDiarmada, 6pm - GAAGO
Sunday, May 21st
Munster SHC round 4
Clare v Cork, Cusack Park, Ennis, 2pm - RTÉ2
Tipperary v Limerick, FBD Semple Stadium, 4pm - RTÉ2Tweet