I picked up the DigitalStream DTX9900 yesterday, activated the digital closed captioning, and very late at night, about 2:33 a.m., was "treated" to some visual abnormalities when it was showing an infomercial on the local MyNetworkTV affiliate, WDCA.
Fortunately, because of having my TiVo hooked up to view the output from the CECB, I was able to back up and look at what had happened.
The visual garbage came slowly up onto the screen from the bottom and initially showed some kind of residue from the menu for the digital closed captioning, even though that hadn't been touched for a few hours. It looked like there was something that had stayed in the CECB's memory that had eventually leaked out onto the screen:
The visual garbage kept coming up onto the screen, though it changed over time. (My camera ran out of battery power, so I didn't take as many pictures as I might have otherwise.)
After taking lots of pictures, I changed the channel a few times and then went back to the infomercial to check what would happen. The problem had cleared up temporarily but came back on in a few minutes for the same infomercial:
The visual garbage stopped moving after the infomercial ended, however, though it stayed put for the uncaptioned DirecTV commercial after the infomercial. The visual junk got wiped off at 3 a.m. when another uncaptioned commercial started, and didn't happen again.
Throughout these problems from 2:33 a.m. to 3 a.m, the sound was still on, and it was still responsive to commands from the remote control, so the CECB didn't completely "crash."
I'd never seen that kind of visual abnormality with the Zenith or Insignia CECBs that I had tried out, though the Zenith had crashed four times and the Insignia five times.
I think all the CECBs I've tested so far are supposed to have the same chip from LG but the captioning and menu of the DigitalStream is very different from the captioning of the Zenith/Insignia, so I'm wondering if the captioning is handled outside of the LG chip.
Maybe I'm in a geographic area (the metropolitan Washington DC area) with quite a few stations with equipment that has some bugs with how captioning is transmitted. In order to see glitches like I've seen with the Zenith, Insignia, and DigitalStream CECB, there may need to be a "perfect storm" of:
a) Digital closed captioning enabled
b) Problematic closed captioning (insufficient attention to captioning from different sources?)
c) Commercials (with problematic captioning of their own?)
More of the pictures of this DigitalStream malfunction, preceded by photos of the DS's captioning, can be seen at:http://picasaweb.google.com/dana.mul...lStreamDTX9900
For the moment, the DigitalStream is working normally today.