40” smart tv for mother £200/£250 budget?

[iMacMart]

My mums needs a new living room tv

Anything I should be looking at or avoiding?

Thanks in advance all

 

[iMacMart]

Can she fit 43" or does it have to be bang on 40". Going to be limited on products otherwise for that size and price and more likely to be 1080p than 4k.

Yes slightly bigger is fine!