A Digital Spy Forum has more details:Digital Spy Forum
The ITC told me:
Thanks for your e mail. We would argue that it is possible to have a degree
of variety within a genre such as home shopping. QVC and TV Travel Shop
cater for different markets for example. We believe that such channels do
add to the range of services available on DTT
across the six multiplexes and
they are popular, so they may well add to DTT's appeal. Naturally we hope
that SDN will be able to widen the range of services on its multiplex in due
course but this will depend on whether channels are willing to join the DTT
platform on a free to air basis.
So the ITC want SDN to have more variety but also think that Bidup.tv and are good for DTT.
SDN also wish to add Simply shopping to the line up!see this Digital Spy Forum