I'm not familiar with Jadoo, but here is an rtmp example for ptvnews

Just use rtmpdump and you'll be able to get most, if not all, of rtmp code for channels you're looking for...
Code:
rtmpdump -r "rtmp://live.server4sale.com/live" -a "live" -f "WIN 13,0,0,214" -W "http://live.server4sale.com:81/swfs/videoPlayer.swf" -p "http://news.ptv.com.pk/livestreaming.asp" -C B:0 --live -y "PTVnews" -o "2014-11-27_11-45-25_PTVnews.flv"
Code:
c:\>rtmpdump -r "rtmp://live.server4sale.com/live" -a "live" -f "WIN 13,0,0,214"
-W "http://live.server4sale.com:81/swfs/videoPlayer.swf" -p "http://news.ptv.co
m.pk/livestreaming.asp" -C B:0 --live -y "PTVnews" -o "2014-11-27_11-45-25_PTVne
ws.flv"
RTMPDump v2.4
(c) 2010 Andrej Stepanchuk, Howard Chu, The Flvstreamer Team; license: GPL
With patches
Connecting ...
INFO: Connected...
ERROR: rtmp server sent error
Starting Live Stream
INFO: Metadata:
INFO: presetname Custom
INFO: creationdate Sat Nov 08 22:52:02 2014
INFO: videodevice CX2388x Video Capture
INFO: framerate 25.00
INFO: width 320.00
INFO: height 240.00
INFO: videocodecid avc1
INFO: videodatarate 200.00
INFO: avclevel 31.00
INFO: avcprofile 66.00
INFO: videokeyframe_frequency 5.00
INFO: audiodevice Line In (High Definition Audio
INFO: audiosamplerate 44100.00
INFO: audiochannels 1.00
INFO: audioinputvolume 75.00
INFO: audiocodecid mp4a
INFO: audiodatarate 56.00
212.040 kB / 4.16 sec
Caught signal: 2, cleaning up, just a second...
232.619 kB / 4.46 sec
Download may be incomplete (downloaded about 0.00%), try resuming
Terminate batch job (Y/N)?
As for arynews, it uses m3u8, so you can use this code instead
Code:
ffmpeg -i "http://stream-ak.vty.dmcdn.net/12/dm/1/x1sh6ok/live.isml/events(live-1417088916)/live-audio=128000-video=838000.m3u8" -c copy arynews.ts