1. Streaming
2. Vudu, Netflix, Crunchyroll, FUNimation, AcornTV, YouTube, iTunes
3. Maybe a dozen. I'm almost exclusively streaming now.
4. Roku and Apple TV
5. I watch a lot of YouTube. Every day I watch short clips on my PC (music videos, product reviews, etc). I often watch long vacation videos and travel vlogs on my TV using the Roku app.
You should create your own Roku channel. I wouldn't mind buying your videos or paying a reasonable subscription.