If you looking for Halo Machinama to watch, i have two YouTube Channels full of content from four years ago when i was developing these, if thats the kind of thing your into, if not then i respect that aswell. Not sure if im allowed to post links but here are the two channels below:
ShadowForge Gaming (12 Legendary Stories of Time)
DarkSoulsGuyX (Behind The Scenes Channel)
If you do like Halo Machinama, then you will honestly want to see ShadowForge Gaming for yourself, you may or may not like it, but its worth looking at if your interested in it.