I founded 4MileCirucs, a small Brooklyn production company, I teach production and post-production techniques with BRIC, and I work in Social Media and Content for KitSplit.
I've made many projects with the ... let's call it questionable ... practice of not forming an LLC. As far as the tax question goes I would say that it depends on if this is a series you're going to shoot this as a one off series now or if this is going to be a project you're going to be working on for multiple years. If you're potentially just shooting this one batch of episodes and that will be it, then (for taxes) I wouldn't go through the process of forming an LLC. The LLC has tax implications but it's a bit more important when it comes to your legal/financial liability in other aspects of production. One thing to keep in mind is that as far as the IRS is concerned you're a filmmaking business, so spend as much of that crowdfunding money the same year you raised it and it's a business expense that will offset the income and help keep you out of that higher tax bracket. I have more info on this and resource links in a blog post I recently wrote here: https://bit.ly/2Mwp3ad