First, I hope VM Tivo 2 is better - it has to be - but Sky Q UHD is v.good, not a massive selection yet, but the movies download quickly even when some are 20gb+ The switching from standard sport to Sky Sports UHD is also fast, and the Q box is working well with the TV in 10bit mode. Thing is the whole box and UI is very fast. What extra 4k stuff will Virgin have?
As for the TV it is the Sony KD55XD7005 Sony link here:
http://www.sony.co.uk/electronics/te...delPrices=true .
I got it for £700 (55" model). I got it because I thought it was good for 4k (getting a PS Pro and have a connection from my PC's 1080 card, as well as Sky Q), and figured that reports into it having 'iffy' HDR were OK given it was £700 for a 4k 55". However, then I found it is direct lit rather than edge lit, and a firmware update enabled UHD, I was very impressed. On the 4k and UHD footage I have tried it is superb. The main thing is the direct lit backlit means it does local dimming very well, and has the most minimal 'clouding' I have ever seen on a big TV. Also, there is absolutely zero backlight bleed even though it is an IPS panel. I'm not really sure what is lacking with the TV. It's not wide gamut (but that is source dependent, just because a box supports wide gamut does not mean what the box is playing does). Maybe this is pesudo UHD with this TV, I dunno, but it looks brilliant and better than regular 4k so that'll do! It's not 3d, but so what. Interestingly it is also a later model than the ones people are grumbling about on the Sony forums.
As for your one box solution, the TV has Amazon video (ink 4k and HDR) and Netflix (also in 4k and HDR) built in.