On Sun, 26 Aug 2007 21:51:07 -0400, Dave Platt wrote:
The artifacts seen on digital TV, such as they are, are very different
from TVI artifacts on an NTSC broadcast signal. You won't see (or
hear) sound bars, hum bars, herringbone, buzz, at all (unless perhaps
your TVI is so powerful that it's getting directly into the final,
analog stages of the TV... not likely unless you're running a kilowatt
right next door).

Though given so many people are on cable/satellite these days, I would
suggest that post-demodulator pickup will probably be the more common type
of interference...

Sound bars, hum bars, and herringbone are all a function of analog
reception. You won't notice any of that on a DTV receiver.

As Dave says, macroblocking and complete dropouts will be the most common
problem. I doubt you'll see any other type of interference to the picture.

Direct RF pickup on external audio wiring will probably be a bigger
problem. It'll sound just like RFI on stereo equipment. (since that's
essentially what it is...)