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Contact WCFE PBS engineering department and have a informational chat , on the Phone , not text , not e-mail.
Ask engineering department what is the Real and Actual channel that is being Transmitted and Received.
Ask them what the , virtual channel number is.
Tvfool channel list shows the Real Channel and shows the virtual number.
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www.en.wikipedia.org/wiki/WCFE-TV
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Digital Broadcast Tv Tuners can develop -Digital Glitches- that are not cleared out with simple channel scans.
To clear tuner do Double Rescan.
www.wchstv.com/DoubleReScanAlert.pdf