How to Get Split-Screen on Minecraft PS3 Edition?

It seems like I've tried every which way to get split-screen while playing minecraft on my PS3. I have an HDTV and an HDMI cable and I tried hooking that up, then pressing "start" on the second controller (in-game), but that didn't work at all. I've tried simply pressing "start" on the second controller (in-game) but that doesn't work either. I'm starting to get really frustrated, because it seems like everyone has the split-screen capability, but no one knows how to set it up. I was hoping someone could give me detailed instructions on how to get this to work (especially if I need to change some settings within the PS3 itself).

Make sure the HDMI and HDTV is set up. Start up a new world and make sure both controllers are on. Press start on one of them.

Also make sure your display is 720p. If not go look in your Settings, probably under the Display Settings.

In order to play split screen, it has to be HDMI.