1 of 26How I Met Your Mother Loses a Father (Jan. 3)
As Marshall tries to reach his father, Marvin Sr., to share some good news on How I Met Your Mother, Lily must deliver some bad news: His dad has died from a heart attack. The signs were there — literally in clever insertions of a 50 to 1 countdown during the episode — but it's still a huge shocker, not just for us and Marshall, but for Jason Segel as well. He was unaware of the twist and improvised his line: "I'm not ready for this."
Photo By: CBS