This is going to be long..
Nice work so far. I think it needs to be packaged better. It's rather dull in looks and function.
Once you click on anything. Sufers need to be able to get back HOME quick. Link the logo at top to the Home Page File. Not the URL.
Consider a "members club" send the members news letters with releases and updates plus specials.
The META Keywords is not set to sell. Those need to be BUY TARGETS. Like.. "buy dvd online" "buy old movies" .. etc, you will get the idea.
In the title. Break up the site name. Those are great search engine words but not all together. Make it Dvd Tv Shows : Great TV Shows on DVD at Rock Bottom Prices at DvDTvShows.com
I also think that your going to loose buyers because there is no theme to the site. It's like a store walls. Everthing is divided in 3. Left menu, center text and right photos.
That's just too boring .. sorry. Take a look at this. It's a template that fits your site. Something to give it that store look and feel that it's missing.
Sample Kit
Overall I think your site has a great stock of product. Now it just needs to be packaged better.
Your customers are buying things that entertain them. So, keep in mind they liked to be entertained.
I looked one more time and found HOME. It does not belong in the middle. Place it on the top left. Also link that top logo the same.
That menu on the left is killing me. It's centered and it looks to generic. Needs style there badly.
I will look again later..
I hope I was not too harsh on ya!
2 cents