In 2011, Versus was bought by NBC Sports Group, becoming NBCSN. NBC inherited the IndyCar rights and hired Jenkins to continue as lead announcer for IndyCar on NBC. During the month of May, and on race day at the Indianapolis 500 (which ESPN/ABC still had the rights to), he continued his part-time work on the public address announcing team. Jenkins was involved in NBCSN's practice and qualifying coverage at Indy. In 2012, he announced he would retire at the end of the season, in part due to his wife Pam, who had terminal cancer. She died shortly after the season ended.