all: playdate! that's a great idea! i'll invite my secret friend for a playdate. come on!ll. but she said she wasn't my secret friend. joy: [ cooing/laughing ] is mom my secret friend? nope. mom went inside the house with baby joy. [ ♪ ] is that my secret friend? whyatt, i'm here for our playdate. little bo peep! are you my secret friend? i guess i'm not a secret anymore! thanks for inviting me for a playdate. sure! and thank you for my secret note. tag, you're it! [ laugh ] hip, hip, hooray! the super readers save the day! [ ♪ ] ♪ hip, hip, hooray ♪ hooray! ♪ ♪ the super readers save the day ♪ ♪ we changed the story ♪ we solved the problem ♪ we worked together so hip, hip, hooray! ♪ ♪ hip, hip, hooray ♪ hooray! ♪ ♪ the super readers save the day ♪ ♪ hip, hip, hooray ♪ hooray! ♪ ♪ the super readers save the day! ♪ [ ♪ ] announcer: labor day on pbs kids. hi, neighbor! one little idea... do something nice for your neighbor! is about to become one big celebration: neighbor day. neighbor day! we can do lots of neighborly things for our neighbors. announcer: don't miss this ama