"The project was stored on adapted laserdiscs in the LaserVision Read Only Memory (LV-ROM) format, which contained not only analogue video and still pictures, but also digital data, with 300 MB of storage space on each side of the disc. Data and images were selected and collated by the BBC Domesday project based in Bilton House in West Ealing. Pre-mastering of data was carried out on a VAX-11/750 mini-computer, assisted by a network of BBC micros. The discs were mastered, produced, and tested by the Philips Laservision factory in Blackburn, England. Viewing the discs required an Acorn BBC Master expanded with a SCSI controller and an additional coprocessor controlled a Philips VP415 "Domesday Player", a specially produced laserdisc player. The user interface consisted of the BBC Master's keyboard and a trackball (known at the time as a trackerball). The software for the project was written in BCPL (a precursor to C), to make cross platform porting easier, although BCPL never attained the popularity that its early promise suggested it might."
And I believe the content on the original Laserdiscs has been reverse engineered more than once. Hopefully once content is on the web (unless it's behind robots.txt) it gets sucked up by the Internet Archive.
That of course doesn't take care of any rendering issues.
"The project was stored on adapted laserdiscs in the LaserVision Read Only Memory (LV-ROM) format, which contained not only analogue video and still pictures, but also digital data, with 300 MB of storage space on each side of the disc. Data and images were selected and collated by the BBC Domesday project based in Bilton House in West Ealing. Pre-mastering of data was carried out on a VAX-11/750 mini-computer, assisted by a network of BBC micros. The discs were mastered, produced, and tested by the Philips Laservision factory in Blackburn, England. Viewing the discs required an Acorn BBC Master expanded with a SCSI controller and an additional coprocessor controlled a Philips VP415 "Domesday Player", a specially produced laserdisc player. The user interface consisted of the BBC Master's keyboard and a trackball (known at the time as a trackerball). The software for the project was written in BCPL (a precursor to C), to make cross platform porting easier, although BCPL never attained the popularity that its early promise suggested it might."