Have you looked at the troubleshooting guide: http://nootropicdesign.com/hackvision/build/#troubleshooting
How many TVs have you tried?
Are any components warm?
Does the Arduino IDE recognize the device?
Where are you located (what country)?
Please feel free to send hi-resolution good quality photos of the back of the board so I can have a look at the soldering.
michael [at] nootropicdesign [dot] com