No, no hi-definition, but the media was not nearly as grainy as one might expect. It was almost precisely like what was shown there. And seriously, I still am not seeing what the gain of making all this crap up. I'm no scientist, but I have been involved in entertainment tech/production for 20 years and I can assure you that whatever "conspiracy" would spend a hefty sum creating the kind of hoaxes assumed here, especially prior to the advent of computers. The profit margin after "faking" tons of equipment (which I've seen personally), footage, photos, and "performances" would be mighty slim, considering the numbers of people who'd have to be on their payroll. It would have to be more profitable for each and every person involved to spend a lot of energy keeping this secret than to spill it.
NASA's 2008 budget was just over $17B. People Magazine is happy to pay $10M for pictures of Brangelina's twins; how much do you think they'd pay for one little bit of proof of a global conspiracy? How about some of the harder news media like Time or Newsweek? How about Fox News? Hell, they could have a field day, blaming and bringing down all the "crazy lefties," and maybe stave off the right-wing collapse for a couple decades, given that information.
If there were only 1700 people on the Conspiracy's payroll, they'd each get $10M. Roughly 200 staffers are required to bring an average-sized opera through to closing night. Do we suspect that a global conspiracy would take less than ten times as many people to produce/maintain than an opera? And that doesn't even take into consideration the "props--" vehicles, sets, falsified pictures, potential bribes, etc etc. As we've seen with the various governmental bailouts, $17B doesn't buy a whole lot these days.