Not sure if this is the video you want...when you open the page several videos are listed there!!!
Code:
rtmpdump -r "rtmp://cp156323.edgefcs.net:1935/ondemand" -a "ondemand?videoId=3680660664001&lineUpId=&pubId=1290862567001&playerId=3400194480001&affiliateId=" -f "WIN 13,0,0,214" -W "http://admin.brightcove.com/viewer/us20140716.1307/federatedVideoUI/BrightcovePlayer.swf" -p "http://www.tg4.tv/share.php?p=3680660664001&t=Nuacht%20TG4%2017-193%20&i=http://tgfour.brightcove.com.edgesuite.net/pd/1290862567001/201407/3977/1290862567001_3680783708001_NUACHTTG42014193-1-4-vs.jpg?pubId=1290862567001&d=M%C3%B3rimeachta%C3%AD%20an%20lae%20%C3%B3%20Aonad%20Nuachta%20TG4" -y "mp4:videos/1290862567001/201407/3977/1290862567001_3680783779001_NUACHTTG42014193-1-4.mp4?videoId=3680660664001&lineUpId=&pubId=1290862567001&playerId=3400194480001&affiliateId=" -o "2014-07-17_02-04-45_1290862567001_3680783779001_NUACHTTG42014193-1-4.flv"