A basic and light-on-detail ‘unboxing’ type video on the ‘Skywalker Saga’ 4K / UHD box set, at Nerdist (4 minutes long):-

https://nerdist.com/watch/star-wars-the-skywalker-saga-box-set-unboxing-exclusive

No doubt there’ll be other ‘unboxing’ videos appearing soon - and hopefully in more detail; especially as to the bonus content - whether it is in 4K, HD or SD, as well as any surprises etc.

Edit: another couple of ‘unboxing’ type video for ‘The Skywalker Saga’ 4K / UHD box set:-

https://www.youtube.com/watch?v=dh_k_eFMWnM - at the Arctic Ninja Network youtube channel. (11 minutes long)

https://www.youtube.com/watch?v=5oi1CmEWP20 - at the Nick Mayer youtube channel. (8 minutes long)