Childhood sucks. Imaginary friends rule. "Moone Boy" is a quirky comedy about 12-year-old Martin Moone and his bearded, sarcastic, imaginary friend Sean (Chris O'Dowd, "Bridesmaids"). Martin's imaginary pal plays the banjo, writes bad love poetry, and helps Martin navigate the challenges of his eccentric childhood. This semi-autobiographical series, written by and starring O'Dowd, was a critical hit in the UK and is now exclusively on Hulu. less