Why don't channels 90, 99, 100, 200, 400, 500, 600 show up?

[SledgeHammer]

Seem to have this going, but for some reason channels 90, 99, 100, 200, 400, 500, 600 don't show up in the guide? I know they are BS channels, but just wondering why they are missing?

[Pro-289]

Could they be related to the transponder problems that are going on right now? 30 & 32 seem to be giving lots of people problems.

[captain_video]

I don't think it's a transponder issue but a software one. I've lost all of the aforementioned channels after upgrading to 2.5.2 on three different DTivos. They can probably be added back into the channels.dat file to be accessible but as you said, they're BS channels and don't serve much purpose other than as a continuous preview/infomercial for DTV.