Its quite hard to appraise a domain like "profitable", it would be much easier to appraise "profit", Im not sure right now. I suggest holding onto the domain untill the .tv market blooms. I own a similar .tv, in terms of hard to appraise.
The domain would be good to a TV marketing company, say for adverts. It will however be hard to find an end user because of the lack of such businesses.
If you were to sell right now, the most I think you would get is mid - high $xx.
Thats me being honest. I suggest holding onto the domain for the future.
Thanks and good luck,
Declan.