*** There's an addendum video, where I address where I went wrong setting the resolution on my laptop:    • Cheap HDMI Modulator - ADDENDUM  

I look forward to finding out that I should have added a coupling capacitor to keep this from breaking things. Cheers!

0:00 Aspect ratio rant
5:40 Testing the converter
10:56 Composite output mod
20:54 Testing out the mod
23:35 Conclusion
25:39 Not a transmitter!
26:25 Pictures