While we can't claim to have seen the Samsung Vibrant perform the feat of TV out with our very own eyes, we can confirm that the Vibrant does appear to support the same TV out functionality of its international Samsung Galaxy S brethren.
Visiting the "Sound and display" menu within the Vibrant's settings reveals the same "TV out settings" menu as seen in the international Samsung Galaxy S. Within this menu, you have the option to pick from PAL or NTSC video formats. The Samsung Galaxy S is capable of using the 3.5mm audio jack to output a video signal mirroring anything being displayed on the device's screen.
We've reached out to our friends at Samsung for official confirmation of the Vibrant's video-out capabilities, and will of course keep you updated on what we hear -- and perhaps even throw up a video if we can get our hands on the requisite 3.5mm TV out cable.
Update: To those waiting with baited breath for official word, get your credit cards ready for launch day (or pre-order, if you prefer). Samsung has confirmed for us that the Vibrant does indeed do TV out via the 3.55mm jack. Here it is, straight from the horse's mouth:
"Galaxy S series will use same TV out cable as I920 VZW. The N/N for the TV out cable is 3.5 mm to RCA TV out cable."
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