Coming to the rankability of a page, it depends on lot of parameters with the quality of content being at the top.
Well there isn't much of the content when you look at the internet shop: the whole template is static except for the middle part where only (by default) 18 products are seen.
Of course having a page as close as possible to the domain's root is good when it comes to crawlability factor but this cannot be a substitute to the quality of the content that the page has on it. Hope this helps.
And what if i would name my brand pages like: domain.com/sony-tv
then it won't make a new category and the page would have only sony TV's.
In any case I would like to know if domain.com/sony-tv or domain.com/tv-sony would be more convenient when I want to rank higher for the brand sony.