I agree, the livestream was pretty bad this year - though it did lead to some humorous "broken record" moments during the pre-Einstein speeches...
"Year after year---year after year---year after year---"
But yeah, given the combined resources of NASA and FIRST, a HD stream shouldn't be hard to do, even for 8 fields (some of which aren't even running at the same time).
Also, the district system should probably be expanded further. California seems like an apt target for a new district considering all the regionals hosted there, or maybe the Southwest US (AZ, TX, NM, OK) given that Arizona is growing to two regionals next year and Texas has several regionals already.