Yes, it was used to film one episode, not all of them, also, a VX1K is probably a lot cheaper than a camera used to film a tv show, but they used one to film shots in entourage last year.
Basically the argument you just brought up was pointless. I can assure you that's that was no stock 5D they used to film House. Pretty much a Dslr has worse censors, manual control, battery life, audio, comfort and they have no steady shot. Sure, they have good quality, but they have the jello effect from CMOS chips and a slew of other problems, so for video, a video camera is always going to be a better choice.