Cable knower abouters..

[AD720]

Originally Posted by rizzle

I think the tuner is ATSC. What the hell does that even mean?

See Below...

Originally Posted by AD720

While it may be an HDTV it is possible that it does not have a QAM tuner.


NTSC tuner = analog over the air
ATSC tuner = digital (HD) over the air
QAM tuner = digital (non-scrambled/ "in the clear") over cable

Originally Posted by rizzle

It's a Samsung LN19A450.

Several sources confirm that this TV has a built in QAM tuner. So that is not the problem.

My next guess is that it is mapping the Digital channels somewhere else than you would expect - IE channel "6" shows up on "116.7" or something like that. Consult your owner's manual.