This was in an email they sent me:
We wanted to let you know that the Saturday night live lottery draw show, previously shown on the BBC, has moved online. From 7th January, the live draw show will be available every Saturday night at 8.30pm on:
The National Lottery website, on our Lottery Draws page
TNL Facebook page – our new exclusive entertainment-based draw show available every Saturday.
On our YouTube channel
All draw results will still be announced after the evening news on BBC One at 10.40pm, with full results on the BBC Red Button. The Saturday draws will also be available on BBC iPlayer.
Go to our dedicated Lottery Draws page on our website for more information.