So for example, SKY1 HD will be listed at channel number 106 and SKY1 will be listed at channel number 170. This change is only for HD subscribers - non-HD subscribers will experience no change (so for SD only subscribers, SKY1 will continue to be on channel 106). This change could be a problem for the TiVo EPG as the station ident for channel 106 will be SKY1 for SD subscribers and SKY1HD for HD subscribers. How will TiVo handle this, will it just continue to refer to channel 106 as "SKY1" and 170 as SKY1HD, even though the former will be HD and the latter SD? Presumably HD owners will then need to change their SKY1HD Season Passes so that they are for "SKY1" instead. Anyone using irblast to schedule HD recordings on their SkyHD box will need to tweak their HD channel list when the swap takes place on 1 Feb 2011. Details from Digital Spy forum.