Intel Nucs have 2 or more video connections.
I use one for the tv , the other to a hd-audio capable receiver. The former is used 90% of the time, the latter on rare occasions I come across something worth listening to via 'real' audio systems.
This works in LE10.xx, but stopped working in 11.
In 11 there is no video output selection available, and if both are connected, it choses the 'wrong' one without offering o change it.
Also, probably unrelated to the above, watching a 4k uhd stream via the tvheadend client doesn't work in normal htsp streaming mode, I have to set the client option to stream via http, In this mode there is no timeshift available, a regression to the dark ages of live tv.
All this verified on 3 Nucs, a nuc5, a pentium 51xx, and a nuc11i3 (the latter being the one I would prefer, because it has a decent IR receiver)