"Tester" wrote in message
g...
Are the call letters KCBS the only example of their kind?
KCBS is an Infinity (CBS/Viacom) all newser on 740 kHz
KCB S-FM (formerly KNX-FM) and KCBS-TV (formerly KNXT) are in Los Angeles.

These are not the same call signs. The TV and FM endings are integral parts
of the callsign
According to the way the FCC looks at callsigns these are three separate
call signs.

KCBS is a four letter call sign
KCBSFM is a six letter callsign which happens to end in FM
KCBSTV is a six letter callsign which happens to end in TV.

WLW and WLWT, or WWV and WWVA, or WBT and WBTV are not the same callsigns,
even though each set contains the same first three letters and each station
is owned by a different owner.