Sorry for the mistake Ken. Yes, KISS runs 2 60 sec commercial breaks an hr, sometimes only 30 sec or 1 break at night/overnight. I don't mind them... I'll wait 60 sec to hear more hit music than to hear flops on Hits 1... and J. Rob is correct about both stations...
Hits 1 is afraid to play anything rhythmic. Listen to them, they don't touch the hot rhythmic that actually is doing well on the charts, if it starts to peak, they'll add it at the last minute.
The Heat has gotten more aggressive, but they do specialize in "Hot R&B". I hear them play Waka, Wiz Khalifa, Rick Ross, Nicki, but they don't play the harder hip-hop that appears on the Urban charts because of Hip-Hop Nation that is essentially a Mainstream Urban without R&B... "Hip-Hop Hits" they call it.
I like KISS XM because they play the mainstream hits, and the rhythmic hits (particularily at night) that none of the other XM CHR's will play. It's good to hear ALL the hits. They also have good jocks, and they daypart very well. "Today's Hottest Hits and Non-Stop Jamz"