When I first attended the kingdom hall I was quite surprised about how much they discussed the old testament. It's was always some obscure story about some guy with an messed up name didn't bow to some pagan God and how it's more important to hand out magazines no one wants even if it means we should go jail.
It took a few years to realize they basically avoided the doctrines of grace and Fruitage of the spirit and becoming the new person in Christ.
It's like they don't really get what Christianity is.