1. Can the ADV7174\7179 outputs RGB with sync on green?
2. I've notice this device is NRND, which device replaces it?
1) As long as the input is YUV you can turn on the color space converter. MR42 bit outputs sync on all RGB outputs
2) You might look at something along the lines of ADV7390/1/2/3
Retrieving data ...