Why is Halo: Nightfall in 480i ????? Not 1080p

I have good high speed internet (satellite) . I play YouTube videos in 1080p all the time, but when I’m watching Nightfall, it’s only in 480i (or 380p I can’t tell the difference, because the picture is so ugly) every time I watch an episode ,oh and it stops every 5 minutes (I have to pause it) just to load… it’s very annoying. Is anybody having these similar issues or am I the only one.

Works perfectly for me and in 1080p, my connection is around 100mb in download. To watch video in streaming, your connection need the less packet errors and I know that for satellite connection this is not stable, you receive just 1/5 of information.

Ok, now I understand. Thank you.