Sizemore had been approached to appear in the first season of the reality television series Celebrity Rehab with Dr. Drew, but declined. He met with Drew Pinsky about appearing in the second season, sitting in Pinsky's office for two hours, as Pinsky recounted, "sweating and completely high on drugs, talking a million miles an hour, acting like he was going to do it then deciding he didn't want to." Sizemore ultimately decided to appear in the show's third season, but did not appear in the season premiere. Because Heidi Fleiss was also in treatment on the show that season, both she and Sizemore had to consent to appear together. The season premiered in January 2010, with Sizemore's arrival at the clinic chronicled in the third episode, and his reunion with Fleiss was amicable. By the season's end, Fleiss lashed out at Sizemore at their graduation ceremony, taunting him that "the thought of being with [him] would turn women gay."