I know this would be legal "WBZ Boston WBZ HD Boston "
here is some of the FCC techno jargon on the tyopic
Needs and Uses: On May 31, 2007, the Commission released the Second
Report and Order, Digital Audio Broadcasting (DAB) Systems and Their
Impact on the Terrestrial Radio Broadcast Service (``Second Order''),
FCC 07-33, MM Docket 99-325. Provisions of the Second Order require
station identification requirements for Digital Audio Broadcasting
(DAB) stations to facilitate public participation in the regulatory
process. Both AM and FM stations with DAB operations will be required
to make station identification announcements at the beginning and end
of each time of operation, as well as hourly, for each programming
stream.
47 CFR 73.1201(a) requires television broadcast licensees to make
broadcast station identification announcements at the beginning and
ending of each time of operation, and hourly, as close to the hour as
feasible, at a natural break in program offerings. Television and Class
A television broadcast stations may make these announcements visually
or aurally.
47 CFR 73.1201(b)(1) requires that official station identification
shall consist of the station's call letters immediately followed by the
community or communities specified in its license as the station's
location; Provided that the name of the licensee, the station's
frequency, the station's channel number, as stated on the station's
license, and/or the station's network affiliation may be inserted
between the call letters and station location. DTV stations, or DAB
stations, choosing to include the station's channel number in the
station identification must use the station's major channel number and
may distinguish multicast program streams. For example, a DTV station
with major channel number 26 may use 26.1 to identify an HDTV program
service and 26.2 to identify an SDTV program service. A radio station
operating in DAB hybrid mode or extended hybrid mode shall identify its
digital signal, including any free multicast audio programming streams,
in a manner that appropriately alerts its audience to the fact that it
is listening to a digital audio broadcast. No other insertion between
the station's call letters and the community or communities specified
in its license is permissible.