Feeling slightly nostalgic today, and Geekdad (from Wired) comes through with a pass-along from Wil Wheaton.
KROQ has a backup channel using all of their 80’s/early 90’s playlists and promos. If you are in LA, you can listen via HD Radio. If not, tune in and listen online. So far, I’ve heard Scritti Politti, The Alarm, and The Clash.
If you are looking more for big hair and screaming gitars, I highly recommend KQLZ – a tribute to the Lonn Friend programmed Metal Station from the Late 80’s/early 90’s. They even play stuff I don’t know.