Go to your RealPlayer settings and set this trick

PROXY SERV.ADDRESS: 10.165.127.21
PORT: 554
AP: SMARTINTERNET

Then save this links sa Gallery nyo...

ABSCBN: rtsp://10.138.20.4/broadcast/helix4/rtpencoder/ABSCBN.sdp

GMA7: rtsp://10.138.20.4/broadcast/helix4/rtpencoder/gma.sdp

PBA: rtsp://10.138.20.4/broadcast/helix4/rtpencoder/pbastd.sdp

SOLARSPORTS: rtsp://10.138.20.4/broadcast/helix4/rtpencoder/solarstd.sdp