<human>:  Did Supernatural break 2001 CW debuting shows seasons record?
<bot>: Yes, Supernatural broke the 2001 CW debuting shows seasons record. Smallville debuted on the CW in 2001 and Smallville had the record of most CW seasons for a show with 10. Supernatural concluded its run with its record breaking 15th season on the CW, so Supernatural broke the 2001 CW debuting shows seasons record.