There are several brands of LED TV sets that come set with HD. But I think it is up to the cable package that you sign up for in which determines what channels you can watch in HD.
There are multiple brands that create LED TV's. Some include Samsung, Philips, and Sharp. There are many other brands available, and they are available at http://www.ledtv.net/LED-TV-Manufacturers.html
I think that the best television brand is probably the Sony Bravia. They make a good LED 3D television, with a good picture, but they are also more expensive than other brands.
The best flat screen tv brands available are Panasonic and Sony. They are both very popular.
Full LED 3D televisions are available at a variety of store like Sears and Wal-Mart. Prices will vary according to size, but overall Samsung and Visio seem to have the best prices in all size categories.
There are many different brands that are considered to be the best for LCD LED TV's. Sony, Samsung, and Vizio are all great brands to choose from.
There are several different brands of 32" LCD TV's available. The most popular are: LG, Panasonic, Toshiba, Sony, and Samsung. There are the lesser known brands such as: Insignia and Dynex also available.
In my opinion some of the best brands for LED TVs that are at least 55 inches are; Samsung UN55B7000 55-Inch 1080p 120 Hz LED HDTV and Samsung UN55B8000 55-Inch 1080p 240 Hz LED HDTV.
Yes, Samsung led TVs (and other brands of led TV) are compatible with Sky TV, and also with other cable/satelite providers such as Virgin Media and Freeview.
I have found that the website http://reviews.cnet.com/best-led-TVs/ offers an informative, well rounded review of LED televisions. In addition, the reviews are done in accordance with the different name brands and styles.
As fas as I know, for LCD, it's 70 inches. For lEd, it's 65 inches. There is such thing as an LED/LCD TV, where I have a question about it. You forgot plasma TVs.
Two of the highest-rated brands of TV wall mounts currently available are Cheetah Mounts and VideoSecu. These two brands can both be purchased online through Amazon.
You are face with an array of options. Sony, HDTV, LG, etc. There are various brands available that are all highly recommended. As far as environmentally friendly your best choice would be the LG.