SIRIUS Satellite Radio is sometimes referred to as Sirius radio, Sirius radios, Sirius satellite, Sirius satellite radios, serious radio, sirrus, sirus, syrus, serius and sirrius. SiriusSpecials.com is often searched for as www.sirius.com, www.sirus.com, www.sirrus.com,www.serus.com and www.serious.com. In the context of this site, these terms and others such as satellite radio, sat radio, and fm satellite radio refer to SIRIUS Satellite Radio.