The side issues of going all nice and high def at the source is they also have to improve on the set design and make up .. little scuffs and zits that might not have shown up before are revealed in all their glory :-)
Interesting how things change, only a few years ago that the editors who choke at the thought of any lossy compression used on the video sources (can't remember how many times I had to use the words "mathematically lossless" when I was demoing our gear to the BBC, and then them making me prove it by feeding in some god awful source to see how it ended up being processed), now look at the fuzz they broadcast! (Sky is the worst!).