There isnt a single Ashton Kutcher episode in Two and a Half Mens top 10 on IMDb, proving that the series wouldve been better off if it just ended after Charlie Sheen left. When Sheens substance abuse issues and tensions with series co-creator Chuck Lorre worsened during the eighth season, Sheen was fired and went to rehab. But since Two and a Half Men was one of the highest-rated shows on the air, Warner Bros. wasnt ready to let it go. So, they brought in Kutcher to replace Sheen as the lead and dragged it out for another four seasons.