I have a TV card in my computer - I did buy it because of the change over.
So it is fairly new.
Do you have any info about your TV card?
Is there any kind of antenna connection on the back of the computer?

Mine came with a single extend able 4' antenna & the connecting cable.

Then I had to do a scan for channels also before it worked

You can still watch videos like on youtube correct?

You just can't get TV over the airwaves channels?