"through tv" is correct and usable in written English.
You can use it when referring to something you saw or learned about on television. For example: "I saw the news about the new trade agreement through tv."
We watch war through TV too.
"Television's ripe for disrupting as people are fast-forwarding through TV ads".
It's just an exhilarating moment that, through TV, has had legs".
No one would get to know one candidate from another, except through TV ads.
Salbi realised that she could reach more women more quickly through TV.
It's worth noting that these isolated successes have come through TV talent shows.
Although I couldn't afford to buy records then, I absorbed him through TV and radio.
The league needs every impetus it can get through TV and media exposure.
A slice of Americana "About a year ago, late at night, I was just clicking through TV channels.
The network enabled them to reach voters personally, on a scale similar to what could be achieved through TV ads.
Even though many millions more have met her only through TV, they've since had the same experience.
