Nitpick: the BBCs Doomsday project used a proprietary data format on standard laserdisc medium, which is why they ended up not being able to access the data decades later as the custom hardware to decode it no longer worked.
The laserDisc format was a standard format, and working players can still be found for sale on eBay etc.
Compared to DVD and VHS, it's true it wasn't a commercial success though.
Also, if you're interested, there is a robust community around re-creating the Domesday project with modern hardware [0], as well as capturing LDs via the player's raw RF output, using both bespoke hardware [1] and off-the-shelf [2], then decoding the output in software [3].
[0]: https://www.domesday86.com
[1]: https://github.com/simoninns/DomesdayDuplicator/wiki