OK - MUCH better picture painted with the improved clarity on the situation.
I was about to launch into complete concurrence with those above who advised that your data files were most likely recoverable.
Never mind......
Anything connected to your Cakewalk account should be able to be downloaded and installed again, as should most any plugin you bought from any place where you had to create an account.
There may be some process of transfer from the old PC's unique ID to the new one, but that shouldn't be much more than annoying to go through for a day or 2 to get sorted out.
VERY happy your project files and personal data have survived.
The other thing I would question is what had happened that fried both your TV and your motherboard (IF both are indeed toast). I am HOPING you have some sort of surge protection on a power strip, otherwise something would seem really wrong with the electrical situation. I would DEFINITELY have a look at what could fry multiple components like that. (again, IF motherboard too is gone).
Is there any chance you have either extended warranties on the TV and possibly the motherboard, OR are either covered under the manufacturer's warranty?
Bob Bone