it is a digital tv?
this have digital channels because i read in one similar tv that didnt have,
and why is so cheap, it dont have something?
Analog tv's stopped being sold in 2006. Broadcasting of analog signals, and selling tv's with analog connections stopped in 2014. All tv's are now digital.
Read the description of this product, as it tells you exactly what options it offers, or the manufacturer's website: http://www.insigniaproducts.com/products/televisions/NS-32D512NA15.html.
The only thing it is really lacking is built-in apps. But that can easily be added via a dvd / blu-ray player or Roku streaming stick, etc.