Sat night's MSNBC (1588) always plays 'Lockup' that reality prison show, went to the channel tonight to tune in and it doesn't seem to exist. And I swear earlier in the week I had checked ahead to see what time the new episode was on and it was showing in the guide like normal. Now it's not in the HD menu or all channels menu. Don't tell me this is gone now, a week after HDnet is gone. Or does this just happen at times to channels?