Would the brand of an HDTV affect the picture quality?

For example: I have an LCD High Definition TV by LG...would the picture look better on an LCD High Def TV by lets say, Samsung?

Hi, I have been researching on HDTV over the year. Seriously speaking, Sony and Panasonic are always in the top league of the LCD tvs. Any of their models can win any brands of LCD easily. However, things seems to have changed, Samsung seems to have break through on its new R74BD series as it squeezes into the Top 3 of the LCD brands in "What Video". "What Video", a HDTV magazine with over 25 years of tv reviewing history, with its own lab and its unique equipment, they test the TRUE specification of almost every models of HDTV there's in the market. Since u only asks about LCDs in your question, I will suppose that u understands their differences and will only talk about LCD tv here. =)

First I would like to highlight that, never believe in the stats that the brands claimed except for the resolution. Gradution[Grey Scaling, or also called black levels], contrast ratio and brightness of the tv, are always boast by the brands. When tested in "What Video" a Panasonic plasma with 3000:1 claimed contrast ratio seems to have much better ratio than a Samsung plasma with 10,000:1 claimed contrast ratio. Trust me, only look at the brands and resolution when looking for a HDTV. =)

Secondly, never listen to what a saleman recommend, they only recommend those tvs with higher comission for them to u.