At the beginning of each show, they have each one of the Teletubbies jump out of a hole, each one announcing their number, counting to four. Watch for the opening when they come out in this order: Tinky-Winky 1, Dipsy 2, Po 3, and Laa-Laa 4. Look carefully as Laa-Laa jumps out...and you can clearly see her accidentally clobber poor Po! She, in fact, is violent enough that Po has to grab her fake head to make sure it doesn't come flying off! (Don't ask me how many times I had to see the show to find this...but I just about died laughing the first time I saw it.) :)