@Tultrade1
So I think you're saying you currently have a Sky Q box and one mini box. If you want to connect a third TV to Sky you'll need another mini box.
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 ▪️
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
