Traditional kids' cartoons rarely have cliff-hangers, especially ones in which the main characters get transported into alternate realities. But Adventure Time is anything but traditional. The whimsical Cartoon Network series — which is populated with talking candies, partying bears and a flying, Korean-speaking, rainbow-colored unicorn — begins its fifth season Monday (7:30/6:30c) with audacious Finn and his magical dog Jake on the other end of the mysterious portal they leapt through in last month's finale.
Neil Patrick Harris is fast becoming the busiest man in show business, so it's fitting that he'd be working on Labor Day. The How I Met Your Mother star — whose summer activities included hosting the Tony Awards, starring in the box office hit The Smurfs, and a guest-judging stint on So You Think You Can Dance — guest stars on next Monday's episode of the Cartoon Network whimsical series Adventure Time...