Ok, so we all know that Netflix through 3rd party apps like MC and xbmc, etc suck and there isn't a whole lot we can do until they move to HTML 5 (at least that's what I read). However, Netflix does offer an app for windows 8 for use with metro.
I've figured out how to launch the app by using the launch external programs option and under the command options type: explorer.exe netflix://
That works except for one minor detail, there isn't an easy way to get back to MC in theater view and that's where I need help.
I know you can create a script using autohotkey that will launch the metro app and allow you to exit the app using escape or the corresponding remote button and then reopen MC. I know because the guy at this site has done it for xbmc:
Itsjustwhatever.com
I've asked him to make a script for jriver but I don't know if he will or even got my message. A lot of you guys are smart and could probably do this yourself (he posted the source code).
Anyway, I think this is the best alternative and is a good solution to those that want Netflix but want one app to do everything.