The basic Sky Entertainment and Netflix plan looks to be £26 per month on an 18 month contract, £29 per month on a 31 day rolling contract. This has Sky's own content in HD and includes the basic Netflix with Ads tier, in HD/single device viewing at any one time.
If you're already on the £17.99 UDH/4 concurrent device tier, then the same Netflix tier through Sky is £11 per month, so £37 total on an 18 month contract, £40 per month on 31 day rolling contract. You can bump the Netflix tier up and down at will, so one month on the Basic plus Ads tier, one month on Premium and back agin if you wish.
Sky's own content will still be in HD though; they have a separate £6 per month charge for UHD/HDR/Atmos and is only really worth it if you are taking Sky Cinema and/or Sky Sports.
TL;DR:
Sky Entertainment and Netflix (includes Netflix plus Ads HD/1 concurrent device tier): £26 per month/18 month contract, £29 per month/31 day rolling contract.
Netflix HD/2 concurrent devices/no ads: +£6 per month
Netflix UHD/4 concurrent devices/no ads: +£11 per month.
Sky UHD+Atmos for Sky's own content: +£6 per month.
Sky Glass & Streak Puck customer w/Sky Entertainments & Netflix, Sky Cinema, Whole Home & UHD/Dolby Atmos add-on.
