wahiba wrote:The BBC has been quite glad that people had 'illegal' copies of some of the old b&w TV programmes. It has been the only source of missing episodes of Dr Who and Dads Army. The other big source has been 'acquired' demo tapes sent to Australia so the censor could check them. Not sure if the odd episode of Dr Who was 'banned' in Australia or not.
Actually nothing from early home taping has provided a lost programme for the BBC...the shows of which you speak were recovered in the form of 16mm film prints that should have been destroyed but engineers "accidentally" took home...
However there are a handful of famous Doctor Who episodes that only exist in colour (as opposed th 16mm B&W prints) because a helpful American made betamax off-air recordings in the late 70's. Even then one story (Ambassadors of Death) the Betamax recordings is supposedly so poor that they cannot recolourise using it. Not convinced since I have a 1st Gen NTSC dub of that Betamax tape, I believe in time technology will enable the restoration team to achieve something with it.
THere was a chap recording onto VT at home in the 60's, he got the moon landing (the BBC wiped their own tape and thus have NO COPY of their own output that historic day) and some Patrick Trougton Doctor Who...but to save money he slit down 2 inch computer tape to 1/2 inch and none is playable today which is a crying shame. The tape simply wasn't up to retaining video signals.
Still they got the audio from his tapes. And no doubt somebody else was recording back then and has a stash of proper open reel VT's which retain stable images. I retreived some open reel home VT's from a jumble sale in 1993 that had been stored dreadfully...revealed pristene recordings of the 1980 Wimbledon final and of Voyager 2 being launched.
Since about 1978 British broadcasters have been required to keep their entire output (apart from weather forcasts and short news bulletins).