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Yes .. the Comcast tech figured it out but unfortunately I can't for the life of me remember what he did. Instead of spinning your wheels I would just call Comcast.
Did you have it fixed? I have the same problem
try unplugging the box wait two mintues and plug it back in, if that does not work then call comcast for assistance.
Last night about 10:15 p.m. our Sony TV connected to your Scientific Atlanta Explorer 3250 HD Cable Box went from 'color to Black and White' and also from 'High Definition to a 480i SD picture'.
Our bedroom High Definition TVconnected to your 'Cisco' Cable box works fine.
Thanks and regards,
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