Thanks to a tape of Sweet Nightmares from 1989, digitized and posted by http://texasmetalpowerhouse.blogspot.com/ we have two promo spots from that year.
Audio Samples
1. First up is a gentle musical promo featuring voice work by Duane Bradley, soliciting support from local businesses during a fund drive.
2. Next is voice work by Duane Bradley, soliciting funds to cover replacement of the station's transmitter following a catastrophic lightning strike.
3. The original tape also had promos for Xenophile and The Civil Service Broadcasting Empire