Check it out for yourself:
http://www.clearchannelmusic.com/formatlab

40s
50s
60s
70s
80s
90s
2000s

AT40 w/ Kasey Kasem - lots of obscure, rarely heard 80s songs
Blues Channel
Can You Dig It ("old skool" hip-hop/ motown)
Classic Dance (disco)
Classic Country (50s/60s)
Endless Love (romantic)
The GiG (live concerts)
Heat (rhythm and blues)
Jazz
JokeJoke (comedy greats)

Kiwi (for teens)
La Bomba (latin music)
The Mood (slow, easy listening)
NASCAR
New Age
New Hits (just-released stuff/interviews)
The Number Ones (only the best)
RadioRadio (classic alternative 70s/80s)
Relaxation Channel (sounds of nature)

Random (anything)
Sirens (all women)
Showtunes
Totally Kids (Hannah Montana, Jonas Bros, et cetera)
Trancid (house)
Undies Indie Rock
Undiscovered
Vegas Gold (the standards)