Smart HDTV Advice

[silverzx]

Anyone work for anywhere that sells TV's and in the know?

It's been 5 years since I looked at TV's at it seems things have moved on a bit...

I'm looking for:

- 40"-55" (would prefer something 46"+)
- mountable on my lounge wall (but it must also be able to stand)
- Minimum 1080P
- WIFI  connectivity for iPlayer, 4oD, ITVPlayer etc

Not really bothered about Ultra HD or 3D? 

Budget: up to £700 but £500-600 would be better.

Here's what I'm considering atm:

£429 - Samsung UE40H6400 LED HD 1080p 3D Smart TV, 40" with Freeview HD, Voice Control, Built-In Wi-Fi and 2x 3D Glasses
£529 - Samsung UE48J5500 LED HD 1080p Smart TV, 48" with Freeview HD and Built-In Wi-Fi
£799 - Samsung UE48JU6400 LED 4K Ultra HD Smart TV, 48" with Freeview HD and Built-In Wi-Fi

Also, nice thing about the Samsungs is you can get a wireless sound bar.

£99 - Samsung HW-J250 Wireless Bluetooth SoundBar
£299 - Samsung HW-J550 Wireless SoundBar with Bluetooth and Separate Subwoofer, Black

I get 12.5% off at John Lewis on electricals (TV's) and they're usually sh1t hot with customer service but will buy from anywhere if price is right.

Edit: Looking at this it would seem these are in budget...

£649 - Panasonic Viera TX-40CX680B LED 4K Ultra HD Smart TV, 40" with Freeview HD and Built-In Wi-Fi
£499 - Panasonic 50CS520B Viera LED HD 1080p Smart TV, 50" with Freetime, Freeview HD and Built-In Wi-Fi