Magic Lantern Live Streaming

[hantoo]

Hi Guys;
Hopefully you can help me,
My school is hosting a music competition and I've been asked to stream videos onto a screen so that the audience can see better.
I was wondering is it possible to take the live video out of my canon 600D via HDMI, convert it to BNC or Composite into the Roland LVS-800 vision mixer to project on a projection screen?
Is there any downfalls to doing this? and can magic lantern help or should I not use magic lantern on my camera.
My DSLR will be at back of house next to a computer and right next to the vision mixer.

Thanks for your time guys.
Hantoo

[stoopkid]

The camera comes with a cable to output composite.

Grab a BNC to RCA cable from radioshack. Or if you have time get it for pennies on amazon.