> I'll be most interested to see the citations on this, since
> the rules, at least in Part 73, are at best unclear and at
> worst contradictory right now.
>
> If you believe the data in the FCC's own CDBS database,
> there's no such thing as a "-DT" call. DTV broadcasts are
> licensed under the same facility ID number and thus the same
> callsign as the parent NTSC station, with the only
> difference in the "service" designation (DT instead of TV).
>
>
> So for my local WXXI-TV, there are three records in the
> database: an analog license on channel 21, a DTV license on
> channel 16 and a DTV modified CP on channel 16. All are
> facility ID # 57274, and all bear the callsign "WXXI-TV" in
> CDBS. If you follow the ID rules in Part 73, it seems to me
> that the correct ID would therefore be "WXXI-TV Rochester"
> for both services. Again, if this has been contradicted in a
> supplemental ruling, I haven't seen it, but I'd like to.
>
> There is, in any event, little reason for a thinking
> broadcaster to use an on-screen ID like "WCBS-TV2/DT56",
> since no viewer sees WCBS-TV's digital signal as "56," but
> rather as "2-1." As noted in another post above, the fact
> that the digital signal's riding somewhere in the 700 MHz
> range, rather than on the 54-60 MHz "channel 2," is
> irrelevant to the DTV viewer.
>
Scott, actually if you investigate the FCC website just a bit further you can view the WXXI Authorization (i.e., license) from CBDS page
http://svartifoss2.fcc.gov/prod/cdbs/pubacc/Auth_Files/1025550.pdf
which proscribes "Analog Call Sign: WXXI-TV" and "Digital Call Sign: WXXI-DT"
so not accurate to say all bear the callsign WXXI-TV
its just that FCC's search engine (or page display) mislead you to that conclusion
(and I cited the pertinent FCC documents addressing DTV Station I.D. and PSIP in my 10/31 reply to KMRichards above)