Hi,
I just installed the jdk and Oracle VB, then I installed the SDK with the installer.
I walked through this guide http://developer.lge.com/webOSTV/develop/web-app/getting-started/building-your-first-web-app-webos-tv/
but I got the first problem that the emulator didn't run probably. So I lowered the processor CPU to 1.
It runs finally but a blank black page, I tried to launch the application installed from the App Manager, but nothing.