Speaking of nostalgia, I've just gone through Arthur C. Clarke's Mysterious World for the first time since it originally aired in 1980. It's crammed full of lovable crackpots and has a wide-eyed awe of Computers, with not a single mobile 'phone or web page in sight. Some of the interviews are ripe for satire, for example three Irish priests in a rowing boat recounting their brush with a lake monster has Father Ted written all over it. (And some of the retrospectively ill-advised scenes of Uncle Arthur and young Sri Lankan boys seem to have something else entirely written all over them.)
It's sometimes hard to believe that the world I grew up in looked like that.