Multiscreen subscriptions are needed as you have a mini box. This allows you to watch Sky via your main box in one room and the other box in another room.
You can have a maximum of 4 mini boxes loaned to you by Sky. You can watch Sky content on two minis and the main box at the same time. You may be able to use a third mini box if the first one in use is being used for a streaming app ie: Netflix or DIsney+.
Be aware the original 1TB (non-UHD) Sky Q box only allows one mini to be in use. To check if you have the non UHD 1TB box check in:- Home - Settings - System Info - Hardware Version If it shows as 32Cxxx then you have a non UHD 1TB that only supports 1 active mini box.
All 2TBs and the UHD/HDR 1TB permit two mini boxes. Each mini box which is loaned to you may be subject to a one off upfront charge but you only need one Sky Q monthly Multiscreen subscription.
▪️I AM NOT A SKY EMPLOYEE (undercover or otherwise)▪️ Sky customer since 2001 with: Sky Q | Sky Superfast Broadband | Sky Talk | Sky Mobile NOTE: I only provide help on the forums and NOT via PM
