It all depends, as each persons eye is different, and the big main manufacturers all have differences based on that. This is my personal opinion over weeks of TV shopping.
Short and simple re projectors - Don't bother. The lamps burn out, they cost a decent amount to replace, they run hot as hell (which leads to fan noise), and they aren't designed for long term use or 4-8 hrs of tv on a regular basis. They also lack contrast of a day.
THE 4 BIG BRANDS BREAKDOWN
Samsung - Colours on almost all models (bar the REALLY HIGH END) are normally washed out or overly vibrant (depending on the model). MotionFlow is the worlds biggest pain in the arse (faux high hz) and makes motion seem unnatural. Without it, sports can get a little touchy though. Smart TV side of things though, offers the best for "everyone". They don't have official Freeview Plus support (only Sony and LG hold that license), but they offer a lot of different apps (not that you'd use many). 3D mode on them is active (so glasses have batteries in them and are heavier to use). Most sets come with 2 glasses.
Sony - Their SmartTV side of things is pretty average. They sit in the middle of the big guys, with average colour, but no motion flow means things move nicely. Haven't used 3D on the Sony.
Panasonic - Colour reproduction is REALLY nice across the board, contrast is good (on non plasma models), smart TV options like the Sony aren't great (no official FreeviewPlus support). Easy to use TV's, but tend to be a little more expensive. Haven't used 3D on the Panasonics.
LG - Beautiful natural colour reproduction, and WebOS is a beautiful Smart TV OS. Constrast is stunning. Screen however is a little more prone to reflection if light is directly behind it. 3D mode is passive (meaning the glasses are non powered). This means you need to be more front on to the TV watching 3D movies. Come with 4 pairs though. LG don't market their 4K TVs as 3D, despite them having that function, so that tells you where they see the future of 3D!
Summary: I bought one of the LG 55" 4K TV's (55UF850T from memory).
Curved or non Curved? The latest in wank factor. I realise the idea behind it, but it really has no place in a living room. The idea is that the screen curves the same as the surface of an eye. Cinema screens do the exact same thing. One difference is in a cinema your entire field of vision is the screen. In a home setup/TV it is not. I know someone with a 75" Curved Samsung and the word disappointment comes to mind. It's rather annoying to try and watch things on to be honest.
4K or not 4K? Remember that just becase the content isn't already in 4K, doesn't mean that it won't be upscaled slightly regardless. A 4K panel means that it won't just display 1920x1080 content, but display well above that. A non 4K set will be a panel that "only just" has to display 1920x1080. As such, if the pricing is similar it's a no brainer - Go 4K!
