Chris McCarthy touted Jon Stewart's return to "The Daily Show" along with milestones for "Drag Race" and "South Park" as highlights as his time at Paramount in his exit memo.

Chris McCarthy, who was co-CEO of Paramount Global and president of Showtime/MTV Entertainment and is leaving after more than 20 years, says his “greatest achievement” at the company was his work around mental health. McCarthy revealed last month that he wouldn’t be remaining with the company after Skydance takes control on Thursday.

Chris McCarthy saluted his team and cited advocacy work done on behalf of mental health as among the highlights of his 22-year tenure at MTV, Viacom and Paramount Global in his exit memo. McCarthy, who had served as co-CEO of Paramount Global for the past 15 months in addition to running the cable division,