Network hits under his creative leadership include "Shameless," "Dexter" and "Homeland" for Showtime Networks.

Gary Levine will retire from Showtime after 25 years as the No. 2 programming executive, and after 40 years in TV.

Let's end this debate once and for all...does pineapple belong on pizza? 🍕🍍 #TheChi #Chicago #DeepDish #Pizza #FoodSwap ...