I always tell people I prefer Samsung. Have had my 46' LED Samsung since 2009 and no problems and picture is still amazing.. Which ever brand you go with get at a tv with at least 120 hrz refresh rate. Especially if your getting a LED. Will help cut down
Go with an established brand from an established retailer.
Keep your receipt in a safe place. Keep all your expensive electronics receipts in one place and if you ever have any trouble just fish out the receipt and get it replaced or a full refund.
You need a screen that has at least a minimum max res of 1080p to play 1080p games. You'll probably find that many TV's actually have a higher resolution and will upscale your 1080p image to their native res.
I answered your other thread for this, but I see that you're in Canada and may not be able to get the tv I first suggested, so I think that Samsung that you're looking at is probably the best deal for what you're looking for.