Overview: Inside the House the Teletubbies crawl through the Arch one by one. Then they watch some Children going for a long Walk. Laa Laa decides to go for a Happy Walk, Tinky Winky and Dipsy decide to go too, but Laa Laa doesn't know that. When Laa Laa decides to do a Happy Dance, she finds Tinky Winky and Dipsy dancing with her, Po arrives on her Scooter and decides to dance with them, What a Happy Day.