It is interesting that the ratings discussion here is focused on the FM music format stations - ignoring news/talk and the KFI/KEIB experiment.
KFI slipped a bit, coming in 13th in the market and giving way to first place KNX on the AM dial - perhaps due to the latter's excellent coverage of the San Diego fires which KFI did not do to the same degree. KEIB meanwhile continued its improvement from the KTLK period, pulling ahead of KABC, while KRLA remained in fifth place among news and talk formats. KFWB continues to languish in the cellar, which is strange considering the strength of its signal.
Because programming on all of these stations apparently doesn't reach significant portions of the lower age audiences and are on the AM dial they are apparently not of that great an interest here, which to this old timer is sad. But I wonder if the non-music listenership via ipod rebroadcasts and the Internet may compensate somewhat for the AM loss? As far as I know there are no rating services measuring this.
Streams are measured at the origin by session starts and session lengths, and are measured.
But the real issue is that AM in 12+ is down to about 12% of all listening, and in under 55 is around 6% of all listening. KFI has just a 2.4 share in 25-54, which is nearly a point above KNX in the sales demos. It is bleak out there.
As to KEIB vs KFI, we're talking now of a battle of tenths of a share. Looking at it another way, the #1 25-54 station, KIIS, has as much audience as KFI, KEIB, KRLA, KABC and KRLA combined.
Add to that the fact that, other than KFI, all the AM talkers are on less than perfect signals. KEIB misses all the OC at night, and is bad in the north and south of the markets daytime. KRLA is good daytime, but the night signal beams out towards Hawai'i from its perch overlooking Glendale. KABC only covers about half the market usably and well and KFWB, on a higher frequency and on a site with lower conductivity, does even worse.