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

As I understand it, the actual callsigns are KCBS-AM, KCBS-TV, KCBS-FM.
Three distinct calls. That's how calls show up in the FCC liscence database.
(Perhaps, without the '-').

Mark Zenier
Googleproofaddress(account:mzenier provider:eskimo domain:com)