Originally Posted by ybsane
The problem is the last mile to the customers set, transport via fiber or satellite with 4:2:2 mpeg-2 or DVB-S2 MPEG-4 has plenty of bandwidth available.
Yep - and nobody realistically expects MPEG2 to be used for feeds to consumers for any new platforms. The US/Japan/Aus/Korea are the odd-ones-out globally using MPEG2 for consumer broadcast of HDTV - everyone else is using H264 (aka MPEG4 pt 10/AVC)
Whether 4k and 8k use H264 or the newly developing replacement will be interesting. I suspect that 8k will need a newer compression scheme to make sense even using DVB-S2 satellite.
The demo I saw of 8k/60Hz Super HiVision over satellite used 2 x 70Mbs DVB-S2 transponders with the 8k signal sent as 16 simultaneous tiled 1080/60p H264 streams - at around 140Mbs in total. (The live camera demo used 800Mbs MPEG2 over a fibre IP connection from London to Amsterdam).
Until they can get 8k onto a single transponder (ideally more than one stream onto this) - which may already be feasible (the demo I saw was a couple of years ago) then even satellite bandwidth is still looking limited.
Of course 4k is an interesting discussion - as that is probably feasible now for premium content.
From the TV station or Cable company to the consumers set top is the problem...
I suspect 4k/8k is likely to be fibre or satellite based to the consumer - not OTA or copper-cable based - in many territories. Cable and telco companies are eventually going to have to bite the bullet and replace copper with fibre to the consumer - as is the case in places like Japan or Korea.
I notice that at least one telco company in the UK is now fibreing new built homes and offering 50-200Mbs fibre internet connections in these properties.