| Broadcast area | United States Canada |
|---|---|
| Branding | Sirius XM Book Radio |
| Frequency | XM 80 SR 80 |
| First air date | 2002-08-26 |
| Format | Audio Books and Radio Dramas |
| Class | Satellite Radio Station |
| Owner | Sirius XM Radio |
| Website | Sirius XM Book Radio |
Sirius XM Book Radio, formerly known as Sonic Theater (which was an XM-only channel), is a channel on the Sirius XM Radio network that specializes in playing Audio Books and Radio Dramas. It is available on channel 80 on Sirius (where it was formerly 117) and on XM (where it was formerly 163). The program director is Josephine Reed. Effective 2007-08-03, Sonic Theater only broadcasts on weekdays (Monday at midnight ET through Friday at 11:59PM ET). On Sirius Canada, the channel is referred to as simply Book Radio.