I also picked up a NeoTV Prime in Target on Dec 27th. I rooted with the PrimePwn.zip file extracted to a USB, but Hulu still doesn't work. It redirects to huluplus, and it shows in the status bar that recognizes the platform as googletv.
The rooting went fine, restarted few times and the SuperUserSU app showed up.
Is there something wrong with the rooting file, that it didn't replace flash with a custom flash player?
Thanks.