Jeez how many threads do we have on tape vs media?
I do think this format discussion needs a huge dose of reality. Any particular spec doesn't say much if you don't take the format as a whole.
HDCAM tape is 3:1:1 144mb/s 1440x1080. Anyone going to say that it's not good enough for broadcast because it's 3:1:1 or 1440x1080? The bandwidth and colors from the 2/3" sensors alone makes the resolution and latitude. The 4:2:2 is interpolated from the 3:1:1 signal.
XDCAM HD has been 4:2:0 for years. Yet it's been in broadcast for as long as it's been around. Is GOP MPEG2 the "nightmare" that's been mentioned here? Well apparently many broadcast programs love having nightmarish codecs to punish themselves with the inaccurate 4:2:0 color resolution.
I know the HVX-200 is the camera of earth-touch and many other producers BECAUSE it is a pro format
DVCPRO100 (aka DVCPRO HD) from the HVX200 comes from a lower than HD resolution sensor (960x540), and the resolution tests show it. Pictures are softer than any other 3xSensor HD format camera. So while keying a 4:2:2 picture is easier, the overall resolution of the picture is less than many 3xSensor HDV cameras. So while the codec is 4:2:2, the actual resolution of the sample is 960x540 uprezzed to 1440x1080. Whereas the HDV sensors are either 960x1080 or 1440x1080, or in the EX series, 1920x1080. Also the 100mb/s bandwidth is a little deceptive in that it's a 60p codec. So anytime you shoot 30/25/24p, you throw out data the other frames, thus making it a 50/45/40mb/s codec since it can't use the full bandwidth. Pro codec it may be on a Varicam, but as far as most broadcast companies are concerned, the HVX200 is SD quality and not allowed to be an A camera.
PS: I was with the Earth Touch crew when they were using a Sony Z7 HDV camera as a topside camera just last week. Like their HVX200, they know it's a B camera and not for principal capture. Their program, WIld Touch, is broadcast in SD in South Africa. Their web productions are downrezzed to H264 QTmov. HDV could do as good a job in that scenario.
As an aside, the Beeb was using a HVR-V1 and Z1 to shoot the making of their project. I wonder if BBC production will block the making of portion? I believe the producers still preserve editorial as the most important aspect instead of HD to SD ratios.
All of you are arguing for formats that really should be matched to the type of project intended (including budget). The good thing is there is a HD format for almost every budget, even the 1000fps Phantom HD. 
The EX1/EX3 at 1080 looks and performs better than RED at 2k. And it does it for 1/4 the price. That was enough for me.
I'd like to know whose test showed that, especially with a digiprime on the red.