Have the manufacturers ever purchased and promoted such domains? I could see it going higher if that's the case but assuming a speculator buys it (likely scenario), I'd say it'll go for around $2500.
If you're keen on TV domains, I'd be looking towards 4K/8K/Ultra HD TV type keywords although I still think consumers will turn to brand names and reputable sites when it comes time to buy.
3D TV, movies and gaming devices are a flop and it's not just sour grapes because I
can't see 3D. Last month I purchased a 55" Samsung and 3D didn't even come into it. The sales guy didn't even mention it as a selling point either but then I knew what specific model I wanted.
Side note - I was at Sydney Airport last weekend and noticed Sharp advertisements with sharp.
net.au as the URL.. I wonder how much traffic they lose to sharp.com.au