Howard said he'd enjoyed David Letterman's appearance on 'Jimmy Kimmel Live!' but, "I felt like I was being cheated on but I wasn't sure who was cheating on me. Was it Jimmy or David? I felt like they were forming a union without me."
Robin said Kimmel had clearly used Howard to get ahead: "Jimmy was all over him. You're a rung on a ladder. He was stepping on you to get to Letterman."