Originally Posted by Onrd
The Prisoner was shot in 35mm not 16mm.
Maybe you're right. Maybe ITC didn't mind the expense of 35mm production. The BBC on the other hand shot 16mm exclusively since the early-60's since the extra resolution was a waste. As they convert to HD (still in progress) they're skipping 35mm and going straight to HD video because 35mm production is just too expensive.
IMDB is not very accurate about the production of older television shows. "35mm spherical" is just the default for technical specs. It says that some BBC series from the mid-70s were shot on 35mm when the BBC had already banned the format.
Don't compare 16mm features shot ten years ago from those shot forty years ago. It's not the same stuff. The resolution of film has increased many
times over the decades, especially after the development of tabular grain emulsions. That's why Kodak scientists have been releasing a new film stock every year or two for decades.