My honest opinion?
You are much better off selling TVs you can find in a Catalog.
I got sent an exclusive Catalog from one of these distributors.
Inside, is most TVs and other electronics at the very low end red-ticket sale style.
The name of my Catalog is: CRUTCHFIELD
Most Catalogs also have an online distribution apparatus, such as CRUTCHFIELD online or JC Penney online
Your catalogs will always be different but its a good idea to get orders from these.
They have all the information already filled in for you, so you can copy it, and sell it wherever and then simply place the order through their helpful automated service.
Also you are talking about entire TVs or HDTVs so what better way, then to go past the middle men and go direct to the source? Who knows, with their reputable past they may even be the source for Walmart...
Anything that is highly expensive should most of the time be catalog ordered and you collect payment up front.