Just bear in mind, if you get Netflix as part of your Sky contract, its the crappy 1080p version with adverts so you're only saving £4.99 a month. I got taken for a mug by the crafty Sky salesperson thinking I was getting the real Netflix.
As far as I can see there is no integration with netflix at all. Netflix programmes don't show in search results and netflix programmes cannot be added to the sky playlist. It's all very confusing and hasn't really met my expectations.