The decision to purchase a Sony or Panasonic HDTV is very personal but I personally own the Sony 42inch HDTV and it has been a great Television in our home.
The Samsung hdtv and the Sony hdtv are among the top quality televisions in the hdtv sector. The only difference between these televisions are the features they offer.
There are many different television companies sell 50 inch lcd hdtv's. LG, in addition to Sony and Samsung, has a wide variety of lcd hdtv's available.
sony
Sony
The difference in preice between a song HDTV and a panasonic HDTV is around one hundred dollars. Sony usually runs a little higher because of their higher reputation.
There are different sizes available for different models. Some start at 32"and go all the way to 60".
Currently its only available in Black.
SGNL by Sony - 2010 Sony's Best 3D HDTV Unveiled at CES 2011 was released on: USA: January 2011
The cost of a Sony HDTV will vary depending on the retailer that you choose to buy it from. Be prepared to pay at least a grand for one of these televisions.
Bravia. No explanation needed.
Since it is not available in 3D a Sony PS3 connected to a LED LCD 52 inch HDTV would be fine