@Wasabi
Yes it’s as simple as that, no you don’t need to upgrade your account, as it’s just a local change on the HDMI side; and you can even watch both at once, if you like.
In the dear dead days of the Slingbox, I split off the HDMI Out from my YouView box, one side to the TV and the other side to a component video converter, to throw the YouView box’s output to our TV in Spain, a 1500 mile long virtual HDMI cable 😛
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*** Longtime YouView box owner, BT Broadband customer, finally an EE TV subscriber ***
