Just found this. I had read about this alternate ending before, which was supposedly used in some TV versions. I'd still like to see the MacReady blood test ending, but I'm sure that'll never get out, and it's not like it'd be riveting to watch anyway. The deleted Burke cocoon scene in Aliens should've been a lot of fun to see, but it was just disappointing and awkward (Reiser's performance in it was terrible). Of course, that makes sense since Cameron didn't put it in the Special Edition. Still, it's interesting to see new footage. Feels almost like a glimpse into dimension X.