It's normally £4 a month through Sky.
I'm just starting my 2nd 4 month free offer,
so far i've seen every LCFC match in UHD.
Regards quality, i've got a decent top of the range LG tv & normal hd gives me an excellent picture.
Sometimes i'm hard pressed to know if its UHD or HD, but there are times you can
tell the difference, watching the cricket yesterday they did a lazer light show
during one of the breaks and picture was fantastic, you knew it was UHD.
Also some nature programms you can tell the difference.
Would i pay £7 a month ? Probably not, but it's all down to preferences.