For Samsung TVs (or other Tizen based devices) we have an example application developed which should help to get you started on Flowplayer development on Tizen based systems.
The source code can be found from Github: flowplayer/flowplayer-tizen-demo
For Tizen-specific documentation look at the Tizen-plugin documentation
For LG TVs (or other WebOS based devices) there exists an application that acts as the reference on how to use Flowplayer inside webOS based systems.
The source code is publicly available from Github: flowplayer/flowplayer-webos-demo
For webOS specific documentation look at the webOS-plugin documentation