What’s on TV Saturday and Sunday talk shows: ‘All That’ on Nickleodeon

All That The Jonas Brothers perform as this comedy variety show geared to young audiences is rebooted. Cast members include Ryan Alessi, Reece Caddell, Kate Godfrey, Gabrielle Green, Nathan Janak, Lex Lumpkin and Chinguun Sergelen. Former cast member Kel Mitchell appears and is an executive producer. 8:30 p.m. Nickelodeon