"Legendaddy" is the 19th episode of the sixth season of the CBS sitcom How I Met Your Mother and the 131st episode overall. It aired on March 21, 2011. Plot The gang goes to the house that Ted bought a year ago, where they hold an intervention for Barney for his behavior. A few days before the intervention, the gang attempts to watch TV in Barney's apartment and they learn that Barney does not know how to use tools, so he has called a repairman to fix the TV. However, instead of the repairman, Barney is greeted at the door by Jerome "Jerry" Whittaker (John Lithgow), Barney's father who has received his letter. Later, Barney relates to the gang his meeting with Jerry, claiming he is a tour manager who loves Scotch, suits, and loose women as much as he does. However, Jerry reveals that he is actually a driving instructor with a normal suburban life. During the actual meeting with Barney, Jerry attempted to impress him but failed miserably. The gang reveals that Barney's intervention is about seeing his father, who lives in the same area as Ted's house. Barney reluctantly agrees to have dinner with Jerry's family and meets Jerry's wife, Cheryl, and his son JJ. Barney acts antagonistically toward JJ until he learns that JJ stands for Jerome Junior. Upset, Barney abruptly leaves and Jerry follows him to the garage, where Barney is attempting to steal the basketball hoop attached to it. When Barney expresses his resentment that Jerry is nothing more than "some lame suburban dad", Jerry asks why this upsets him. Barney admits he is still hurt because Jerry had never been the responsible father he needed in his childhood. Jerry apologizes for abandoning Barney and helps him remove the hoop while teaching him how to use a screwdriver. Barney goes back to Ted's house with the group and gives the hoop to Ted, urging him to save it for his future kids, choking up as he says, "A kid needs a hoop." Meanwhile, the gang begins to note all of the things that each of them never learned. Robin points that, until his class pointed it out, Ted used to think that the word "chameleon" was pronounced "Chama-lee-on". Ted points out that Robin was unaware that the North Pole is a real place until a marine biologist she was dating told her he was