It is a KDL W670 50 inch. I never looked closely at the tuner because I didn't care but it says analogue on the remote and I get snow when I switch to it. Doesn't seem very digital to me. I bought it from Noel Leeming. It was discounted. Maybe they sold me a (very) old model. Like I said, I didn't care at the time. I just wanted something with HDMI input.
Looks like it is from 2013. Looks like it has both analogue and digital tuners built in . This is the 42 inch version http://www.sony.co.nz/support/product/kdl-42w670a