SkyDE transmit original sound (= most times English) on many channels
SkyDE is available in SD and HD
BUT
there is already (only) one channel (Sky One Germany) that can only be decoded by original Sky hardware (receiver or CI+module)
so I am already wondering why SkyDE is not switching all his channels to that level of encryption ? (transmission is already similar, all SkyDE programs uses DVB-S2 (HD and also SD because every customer has a DVB-S2 compatible receiver, none SD-capable hardware is not used by any official customer anymore)
My personal opinion:
if you already have e19.2e satellite reception and DVB-S2 (HD-capable) hardware, SkyDE is a good compensation for SkyUK (movies, sports not local/UK)
HD+ is similar to ITVs or Channel4/5 (etc like unencrypted FreeTV) with lots of advertising interruption - no fun to watch this channels, especially if you do not understand German (no original sound/english available)