Hi Kite26,
I definitely like DotTV and this is a pretty strong two-worder, but I think from what I have seen, to succeed with TV commercially you need a strong 1 word keyword domain.
Just going by some recent TV sales: Soul, Socialite, Privacy, Surgery, etc all in TV I think this would be a great Dot Com domain, but is not great in TV.
I have also not had much success or interest in my single word TV domains, although I only have about 9 now.
With all that said, I am thinking max:$250-$300 to the right buyer.
Now, if you had Global TV or Village TV then I think you are looking at 10x to 20x my rough valuation.