Digital TV stations

[tarkovsky]

I just read the Plasma screen question and I have one of my own.

I just bought an LCD tv (open box - got a deal) and when I first plugged it in (normal coax cable) and ran the auto channel finder, I got more stations than I was paying for, i.e. the specialty stations and what are I believe the digital stations (like digital radio), etc.

I had to return the tv for a new one (unopened) because it was crooked on its base. Here's the thing: I've been trying like crazy but I can't get those extra stations anymore. Anyone have any ideas? Perhaps the last owner knew a magic setting to get the extra channels?

 

[Larry_Fyne]

Did the original TV have an internal HD tuner? Perhaps it was picking up over the air HD. The new one clearly does not have an internal HD tuner.

 

[tarkovsky]

Both tvs are exactly the same, and are hd (720p). When searching for channels I made it look for both air and cable channels. There's also 2 different coax plugs in the back of the tv which I notice makes a difference. Do you think the tv I returned might have had an extra doo-dad installed to make it capable of picking up the "air" stations? I'm wondering if the tv I returned was a demo in the store and that's why it was an "open box". Maybe the store outfitted it to pick up "air" channels?