As was said earlier, we haven't even completed the transition from SD to HD yet. I think the current state of 3D foreshadows the uphill climb that 4K has ahead of it. There is a lot of support for it among the groups of people who take the time to join an internet forum dedicated to a satellite TV service or to AV equipment discussions, but you have to keep in mind that we here or the folks at somewhere like AVS are a very very small minority when it comes to the customer base of DirecTV. There aren't a lot of 4K TVs out there, the general public has no idea what it is, plus there's a lack of content even to fill a channel. Plus, bandwidth is an issue not only on the service provider (DirecTV) side, but on the distribution side. There's not an unlimited amount of satellite space for channels to send their signals to cable/satellite companies and moving to 4K would put a strain on that to be sure. I'm sure many content providers are still using older MPEG-2 systems to distribute.
I see it, for a good long time, being a niche that is served by a couple of PPV channels and perhaps one or two linear movie or event channels. If you're expecting every day channels like Discovery or USA, or heck even the normal HBO feed to switch to 4K, you may be waiting a while. It wouldn't require new dishes, LNBs, or satellites in space, but it would certainly need new receivers and TVs.
How does that work? I thought bitrate and bandwidth were inextricably tied together.
I think maybe he misspoke. By "bitrate" maybe he meant resolution/picture quality. Bitrate and bandwidth are exactly the same thing.