Online Sources Configurations

I am new to Serviio and have been fortunate in being able to connect the Windows 7 laptop hosting the service to connect with our new TCP60S30 television. The problem I am experiencing even after reading through forums and the wiki deals with successful setup of Online Sources for streaming web based video. At our school we webcast school events via http://livestream.com/3BN for those unable to attend in person.
Any suggestions on how I can find the appropriate source feed so this web stream can be viewed via Serviio? I have experimented with source type of "Live Stream" and source URL of rtmp://a.cdn.msnbclive.eu/edge/ playpath=cnn_uza swfUrl=http://www.rentadrone.tv/player.swf pageUrl=http://www.rentadrone.tv/cnn-live-stream/ tcUrl=rtmp://a.cdn.msnbclive.eu/edge/ in hope of learning the proper path structure. The source url provided is for CNN. When I am on the television and via DLNA I see Servio and find the CNN folder under "Online" but no stream feed appearing.
Any assistance on getting proper source url information will be greatly appreciated!! I am wanting to be able to have the school webcast stream made available on the new television in our school commons area.
Any suggestions on how I can find the appropriate source feed so this web stream can be viewed via Serviio? I have experimented with source type of "Live Stream" and source URL of rtmp://a.cdn.msnbclive.eu/edge/ playpath=cnn_uza swfUrl=http://www.rentadrone.tv/player.swf pageUrl=http://www.rentadrone.tv/cnn-live-stream/ tcUrl=rtmp://a.cdn.msnbclive.eu/edge/ in hope of learning the proper path structure. The source url provided is for CNN. When I am on the television and via DLNA I see Servio and find the CNN folder under "Online" but no stream feed appearing.
Any assistance on getting proper source url information will be greatly appreciated!! I am wanting to be able to have the school webcast stream made available on the new television in our school commons area.