Check out the transmission quaility channel by channel:
tune into you chosen channel -> OK -> Settings -> More settings-> Information->Quality
Duke: ABR (average bit rate) is low at 2260Kbs vs TV1 at 8060kbs
We pay money each month subscribing to Rialto which we rate as a premium indi movie channel but it is only braodcast at 2260kbs - and it shows!.
Vodafone needs to sort this with Sky to get the quality improved!