I wouldn't really say the vineyard was liberal theologically though. They are pretty conservative unless they are really changing.
If you're looking for a church that is theologically liberal (as in the Bible is a book to use as a reference, not the infallible Word of God), I would say stick to the Episcopal Church or Universalist Unitarian. There were quite of few people at our former church who didn't believe much of what is written in the Bible, and you're completely free to come to your conclusions... there's no "wrong" way, just "your" way. To give you an example, our associate rector didn't believe in satan or hell, so pretty much anything goes there!!
OP, best of luck on your search!!! I know how frustrating it can be to find a church home. I hope you find what you're looking for soon!