This thread is saying a simple build.prop edit is all you need:
http://forum.androidcentral.com/optimus-v-rooting-roms-hacks/83845-netflix-works-optimus-v.html
Also, working video:
YouTube - Netflix streaming on an Optimus V.
Awesome. Got the ROM flashed but the themes don't seem to do anything for me except change the font/color on the notification bar. I'll play around with it some more. Thank you!