How about this?
https://www.richersounds.com/tv-projectors/hdr-tvs/samsung-ue49mu7000.html
49" Samsung hdr1000 TV for £749 but they have the Samsung claim back offer.
You can claim back up to £500 depending on what you buy with it. So if you just buy the soundbar at £300 you claim back £200.
If you buy the sub at £300 you can get £200 back.
If you buy a uhd blu ray player at £200 you can clam back £100 back for that. Could make sense once you cost everything.
I bought a Samsung TV and they offered me £400 cash back. Took about a month but I worked. Rescued the cost of my TV from £2700 to £2300.