Some new technology does not last very long,
Quadrophonic Radio - Very large receivers with a joystick to balance the 4 channels in the BBC Radio 3 tests
Quadraphonic: The forgotten surround sound of the 70s
Then along came surround sound & Dolby C
3D tv was destine to fail what with the special glasses who could be bothered ? not enough of us so now mainly in IMAX Cinema's
Super HD is ok for Jumbo Screens but the cost of band width will put off most broadcasters that is why 90% of tv is in SD with 12 to 24 tv channels per transponder
Dab radio 95% in Mono with very low bit rates so they can cram as many channels as possible on one Multiplex
it is a joke.
Long & Medium Wave has been going for over 90 years FM?VHF Radio started in 1955
Now they want to make it all digital