In reply to Alan M:
A few years ago, a similar question might have been 'should I buy a 3D TV?'...
I'm not convinced by the curved TVs; images are captured onto a flat focal plane, and should be projected onto a flat surface, otherwise geometric distortion will occur. If 1D curvature is good, 2D curvature must be better, right...? Then there's the issue of viewing angle; not great for a family TV. I fear that curved TVs are the result of technology gone mad; it can be done, so let's do it, regardless of whether it's a good idea.
The UHD pictures are very impressive, but, as pointed out above, don't you watch TV for the programme conten, the story, rather than the amazing picture?
I have a freeview HD receiver box. I connected it to my 40" 1080p TV for a while, but when I needed the HDMI port for something else, I packed it away, and don't miss it.
Smart TV? Not enough apps, not updated regularly, bizarre, non-standard UI, will be obsolete very quickly, adds disproportionate expense. An external media box is cheaper, more open a more familiar, and can be replaced.