NBC's 'St. Denis Medical' Season 3 Premieres Tonight

• NBC's 'St. Denis Medical' returns for a third season tonight at 8 p.m. EST.
• Dr. Highland (Damon Wayans) takes the lead after Ron's (David Alan Grier) absence due to heart surgery.
• Ariana Madix reprises her role as Dr. Brooke Emerson, fresh from hosting Love Island USA.
• The season picks up with Matt and Serena's new relationship.
• Allison Tolman, David Alan Grier, Mekki Leeper, and others return for Season 3.