The same thing happens in the UK - one of the local stations that proclaims its love of my county is actually a subsidary of a larger network of local and regional stations, operating under one umbrella, and the songlist for all of these is dictated by one guy, who doesn't let any of the local DJs deviate from a narrow choice - Take That, Robbie Williams, Katy Perry, Brian Adams, ABBA, Rod Stewart, Adele and the same song by Elton John and Kiki Dee (
Don't go breakin' My Heart). The guy also wanted to shut down the programme that gave air play to young local bands, saying it wasn't part of the brand image, yet happily promoting local businesses and taking their cash. I think the songs were just to tick boxes while the real aim was to advertise. Pretty shabby.
BBC Radio 1 is also beyond parody - it plays the same grinding din over and over, although it is funded by a license fee, so there are no advertisers to placate. The DJ's are all self-obsessed morons, relating how drunk they got the night before with irritating chums who you'll never meet, and the station seems to scrape the bottom of the barrel in terms of innovative new artists - it's all autotuned dance-pop, garage and R'n'B or anodyne, acoustic indie-folk that is used in TV adverts by the vast, faceless companies who need to create the facade of caring about you - as Charlie Brooker points out, the more dopey and jangly the indie song, the more ruthless and inhuman the company. You're better off listening to Mr Steve Wright playing The Gibson Brothers on Radio 2. Especially this marvel;
http://www.youtube.com/watch?v=-Q9DXSJyNN4