Conversation so far:
Who produced Celebrity Rehab with Dr. Drew?
Celebrity Rehab with Dr. Drew's producers include Jack Siefert for season 1, Duncan White for season 2, Lisa Digiovine, and Danita Jones.
What channel was Celebrity Rehab with Dr. Drew it on?
Celebrity Rehab with Dr. Drew is a reality television show that aired on the cable network VH1.

Question: How many seasons was Dr. Drew on?
Self-contained rewrite: How many seasons was Celebrity Rehab with Dr. Drew on?