Channel 3 in Norfolk switched from NBC to CBS in 1952 and
has been with the Eye Network ever since; its calls have
changed from WTAR to WTKR.
In Richmond, Channel 8 (ABC since 1965) has gone from WXEX
to WRIC; Channel 12 (NBC since 1965) from WRVA to WWBT.
And if PBS stations count, Louisville's Channel 15 started as WFPK,
eventually becoming WKPC.
Channel 27 in Tallahassee (ABC since sign-on in 1976) went from
WECA to WTXL. Likewise, Channel 13 in Panama City (NBC from
1974-82, ABC since) went from WDTB to WMBB.
And have I or anyone else mentioned Channel 10 in Miami (ABC
from 1958) went from WLBW to WPLG?
Also, Channel 39 in San Diego (ABC from 1972-77, NBC since) went
from KCST to KNSD. KGTV/10 (ABC since '77) there was once KOGO; San Antonio's
Channel 12 (KSAT, ABC all the way) was once KONO.
Finally, back to the South: WRCB Chattanooga (NBC, Channel 3) started as WRGP;
WTVC (ABC, Channel 9) was WROM when it was licensed to Rome, GA; that station
was moved to Chattanooga to avoid short-spacing WLW-A, Channel 8 in Atlanta;
as we know, Channel 8 was reassigned to the University of Georgia and became WGTV,
while WLW-A was kicked upstairs to Channel 11 (now WXIA/11 Alive, ABC from 1951-80,
NBC since). 11 Alive has gone through a slew of call letters: WCON (which never got
on the air and was licensed to Channel 2 before the Cox family bought the Atlanta Constitution
and, already owning the Journal and WSB, put WSB on Channel 2); WLTV, WLW-A, WAII,
WQXI, and WXIA.
I also recall WCBD/2 Charleston, SC (NBC since 1996) starting as NBC, then ABC, affiliate
WUSN, changing its call letters around 1972. Also, WMGT/41 Macon, GA (NBC since 1968)
started as WCWB.