|The BBC together with C4 and Arqiva propose more TV channels|
The addition of an HD Red Button channel would, in effect, mark the return of the service that was on air during the Olympics, simulcasting Freeview channel 301.
The proposals by the BBC, Channel 4 and Arqiva, which have been hinted at in the past by Channel 4, were released by Ofcom today, as it decides what to do with a chunk of TV frequencies in the so-called "600 MHz band" between UHF channels 31 and 37, including the frequencies previously used for Channel 5 analogue in many parts of the UK, between now and 2018.
Beyond 2018, Ofcom wants to use the 600 MHz band to house digital TV services displaced from the 700 MHz band, which it wants to earmark for "5G" mobile broadband services. Earlier this year, Ofcom outlined its plans for the UHF band and invited stakeholders to comment on the proposals.
In their submission to Ofcom, the BBC, Channel 4 and multiplex operator Arqiva state that the "launch of [more] HD channels on [Digital Terrestrial Television] in the interim generates benefits across a range of stakeholders that outweigh the operational, consumer and opportunity costs. Interim use of 600 leads to an accelerated take-up of DVB-T2/HD sets as the launch of HD services makes households more likely to buy DVB-T2 equipment (as opposed to DVB-T equipment) and further creates better incentives for manufacturers to produce/sell DVB-T2 equipment. This also benefits the broadcasters that will launch HD services on the interim multiplexes by delivering a higher (weighted) viewing share."
The additional digital multiplexes would broadcast from 20 transmitter sites around the UK, reaching 63% of the population. The announcement explains why platform manager DMOL reserved 20 channel numbers for HD in the recent Freeview channel number reshuffle.
The broadcasters add that with more HD channels and more users being enticed to buy DVB-T2 (Freeview HD) receivers to watch them, it will be easier to migrate other multiplexes to DVB-T2 after 2018. The switch to DVB-T2 would allow for more services to fit on one multiplex, due to higher bandwidth and using the improved MPEG4 standard for video. Additionally, more single frequency networks could be built.
a516digital.com suggests that content currently on the three commercial multiplexes could be moved over to two DVB-T2 multiplexes and the number of single frequency networks carrying the multiplexes be increased, thus reducing the number of frequencies needed at a time when frequencies for use by TV will be cut.
Ofcom appears to agree with the idea and has indicated that it will now proceed with planning for one or two digital multiplexes in the currently empty frequency band, but use of the frequencies may be shared with PMSE (e.g. wireless microphones) and White Space Devices (WSDs) - devices that use locally empty frequencies for wireless internet connections, subject to further research.
Sky, interestingly, objected to the use of the 600 MHz band for TV in its submission to Ofcom, instead declaring that it should solely be used for WSDs. This is not surprising, given its current dominance in the HDTV market.
Read the full submission from the BBC, Channel 4 and Arqiva on the Ofcom website: http://stakeholders.ofcom.org.uk/binaries/consultations/uhf-strategy/responses/BBC_Channel_4_Arqiva.pdf
a516digital.com is not responsible for the content or availability of external sites.
Full coverage of Ofcom's announcement from a broadcasting perspective: Index page - click here