6. 'Stranger Things,' Netflix

The Duffer Brothers didn’t reunite Eleven and Mike until season two's penultimate episode, but I’ll give them a pass on that because the story ended up being just as riveting as the first season. Plus, they introduced two great new characters -- Sean Astin’s “Bob” and Sadie Sink’s “Max” -- and gave us the unlikely “bromance” between Steve and Dustin.