SamyGO

Now they've released the Samsung smart TV app on my galaxy tab which can stream TV over the network to the tab, I was just wondering if there's any way to send the TV stream over my LAN?
I have a B650.

Yes, there is. Using PVR functions, we could send stream to any sources. But we needed to app for the job...

Does anybody know is it enough to send the saved stream directly to a network socket, or does it need some container? I tried once streaming the saved file with vlc (while PVR+ was saving it to my computer), and it was working, but of course not very elegant method. Better if direct way is found.

It is ok to send ts (transport stream) over network, but you need to encapsulate it as RTP stream. Read more here:
http://linuxtv.org/wiki/index.php/Dvbstream