Mr. Ratburn isn't acting like himself./Muffy fears Bailey may be replaced! Arthur, Buster, and Brain are worried when Mr. Ratburn isn’t acting like himself. He’s always pleased to see them...so what ...

The Arthur series finale, "All Grown Up," which debuted on Sunday across PBS platforms, came with the reveal of Arthur Read and his friends, well, all grown up by flash forwarding 20 years in the ...